G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (2024)

Quick Tips

Legend

  • G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (1) represents a button press
  • [ ] represents yellow command or green letter behind a key
  • < > represents items on the screen

To adjust the contrastPress G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (2) , then hold G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (3) to increase the contrast or G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (4) to decrease the contrast.

To capitalize letters and wordsPress G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (5) to get one capital letter, or press G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (6) , then G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (7) to set all button presses to capital letters.You can return to the top-level button values by pressing G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (8) again.

To correct a mistakeIf you hit a wrong button, press G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (9) and start again.

To write in scientific notationNumbers in scientific notation are expressed on the TI-83, 83+, 84, and 84+ using E notation, such that...

  • 4.321 E 4 = 4.321× 10 4 4.321× 10 4
  • 4.321 E –4 = 4.321× 10 –4 4.321× 10 –4

To transfer programs or equations from one calculator to anotherBoth calculators: Insert your respective end of the link cable cableand press G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (10) , then [LINK].

Calculator receiving information

  1. Use the arrows to navigate to and select <RECEIVE>.
  2. Press G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (11) .

Calculator sending information

  1. Press the appropriate number or letter.
  2. Use the up and down arrows to access the appropriate item.
  3. Press G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (12) to select the item to transfer.
  4. Press the right arrow to navigate to and select <TRANSMIT>.
  5. Press G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (13) .

Note

ERROR 35 LINK generally means that the cables have not been inserted far enough.

Both calculators—Insert your respective end of the link cable, press G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (14) , then [QUIT] to exit when done.

Manipulating One-Variable Statistics

Note

These directions are for entering data using the built-in statistical program.

Data Frequency
–2 10
–1 3
0 4
1 5
3 8

Table G1 Sample Data We are manipulating one-variable statistics.

To begin

  1. Turn on the calculator.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (15)

  2. Access statistics mode.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (16)

  3. Select <4:ClrList> to clear data from lists, if desired.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (17), thenG Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (18).

  4. Enter the list [L1] to be cleared.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (19) , [L1] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (20).

  5. Display the last instruction.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (21) , [ENTRY].

  6. Continue clearing any remaining lists in the same fashion, if desired.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (22) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (23) , [L2] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (24)

  7. Access statistics mode.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (25)

  8. Select <1:Edit . . .>.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (26)

  9. Enter data. Data values go into [L1]. (You may need to arrow over to [L1]).

    • Type in a data value and enter it. For negative numbers, use the negate – key at the bottom of the keypad.
      G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (27) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (28) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (29).

    • Continue in the same manner until all data values are entered.
  10. In [L2], enter the frequencies for each data value in [L1].

    • Type in a frequency and enter it. If a data value appears only once, the frequency is 1.
      G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (30) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (31).

    • Continue in the same manner until all data values are entered.
  11. Access statistics mode.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (32)

  12. Navigate to <CALC>.
  13. Access <1:1-var Stats>.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (33)

  14. Indicate that the data is in [L1]...
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (34) , [L1] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (35),

  15. ...and indicate that the frequencies are in [L2].
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (36) , [L2] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (37).

  16. The statistics should be displayed. You may arrow down to get remaining statistics. Repeat as necessary.

Drawing Histograms

Note

We will assume that the data are already entered.

We will construct two histograms with the built-in [STAT PLOT] application. In the first method, we will use the default ZOOM. The second method will involve customizing a new graph.

  1. Access graphing mode.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (38) , [STAT PLOT].

  2. Select <1:plot 1> to access plotting - first graph.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (39)

  3. Use the arrows to navigate to <ON> to turn on Plot 1.
    <ON> ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (40).

  4. Use the arrows to go to the histogram picture and select the histogram.G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (41)
  5. Use the arrows to navigate to <Xlist>.
  6. If [L1] is not selected, select it.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (42) , [L1] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (43).

  7. Use the arrows to navigate to <Freq>.
  8. Assign the frequencies to [L2].
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (44) , [L2] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (45).

  9. Go back to access other graphs.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (46) , [STAT PLOT].

  10. Use the arrows to turn off the remaining plots.
  11. Be sure to deselect or clear all equations before graphing.

To deselect equations

  1. Access the list of equations.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (47)

  2. Select each equal sign (=).
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (48)G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (49)G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (50).

  3. Continue until all equations are deselected.

To clear equations

  1. Access the list of equations.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (51)

  2. Use the arrow keys to navigate to the right of each equal sign (=) and clear them.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (52)G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (53)G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (54).

  3. Repeat until all equations are deleted.

To draw default histogram

  1. Access the ZOOM menu.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (55)

  2. Select <9:ZoomStat>.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (56)

  3. The histogram will display with a window automatically set.

To draw a custom histogram

  1. Access window mode to set the graph parameters.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (57)
    • X min =–2.5 X min =–2.5
    • X max =3.5 X max =3.5
    • X scl =1 X scl =1 (width of bars)
    • Y min =0 Y min =0
    • Y max =10 Y max =10
    • Y scl =1 Y scl =1 (spacing of tick marks on y-axis)
    • X res =1 X res =1
  2. Access graphing mode to see the histogram.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (58)

To draw box plots

  1. Access graphing mode.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (59) , [STAT PLOT].

  2. Select <1:Plot 1> to access the first graph.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (60)

  3. Use the arrows to select <ON> and turn on Plot 1.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (61)

  4. Use the arrows to select the box plot picture and enable it.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (62)

  5. Use the arrows to navigate to <Xlist>.
  6. If [L1] is not selected, select it.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (63) , [L1] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (64).

  7. Use the arrows to navigate to <Freq>.
  8. Indicate that the frequencies are in [L2].
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (65) , [L2] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (66).

  9. Go back to access other graphs.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (67) , [STAT PLOT].

  10. Be sure to deselect or clear all equations before graphing using the method mentioned above.
  11. View the box plot.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (68) , [STAT PLOT].

Linear Regression

Sample Data

The following data are real. The percent of declared ethnic minority students at De Anza College for selected years from 1970–1995 is indicated in the following table.

Year Student Ethnic Minority Percentage
1970 14.13%
1973 12.27%
1976 14.08%
1979 18.16%
1982 27.64%
1983 28.72%
1986 31.86%
1989 33.14%
1992 45.37%
1995 53.1%

Table G2 The independent variable is Year, while the independent variable is Student Ethnic Minority Percentage.

G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (69)

Figure G1 Student Ethnic Minority Percentage By hand, verify the scatterplot above.

Note

The TI-83 has a built-in linear regression feature, which allows the data to be edited. The x-values will be in [L1]; the y-values in [L2].

To enter data and perform linear regression

  1. ON Turns calculator on.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (70)

  2. Before accessing this program, be sure to turn off all plots.
    • Access graphing mode.
      G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (71) , [STAT PLOT].

    • Turn off all plots.
      G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (72) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (73).

  3. Round to three decimal places.
    • Access the mode menu.
      G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (74) , [STAT PLOT].

    • Navigate to <Float> and then to the right until you reach <3>.
      G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (75)G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (76).

    • All numbers will be rounded to three decimal places until changed.
      G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (77)

  4. Enter statistics mode and clear lists [L1] and [L2], as described previously.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (78) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (79).

  5. Enter editing mode to insert values for x and y.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (80) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (81).

  6. Enter each value. PressG Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (82) to continue.

To display the correlation coefficient

  1. Access the catalog.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (83) , [CATALOG].

  2. Arrow down and select <DiagnosticOn>.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (84)... ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (85) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (86).

  3. rr andr2r2 will be displayed during regression calculations.
  4. Access linear regression.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (87)G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (88).

  5. Select the form of y = a + bx.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (89) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (90).


The display will show the following information

LinReg

  • y = a + bx
  • a = –3176.909
  • b = 1.617
  • r2 = 0.924
  • r = 0.961


This means the Line of Best Fit (Least Squares Line) is:

  • y = –3176.909 + 1.617x
  • % = –3176.909 + 1.617 (year #)

The correlation coefficient is r = 0.961.

To see the scatter plot

  1. Access graphing mode.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (91) , [STAT PLOT].

  2. Select <1:Plot 1> To access plotting - first graph.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (92)

  3. Navigate and select <ON> to turn on <1:Plot 1>.
    <ON>G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (93).

  4. Navigate to the first picture.
  5. Select the scatter plot.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (94)

  6. Navigate to <Xlist>.
  7. If [L1] is not selected, pressG Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (95) , then [L1] to select it.
  8. Confirm that the data values are in [L1].
    <ON>,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (96).

  9. Navigate to <Ylist>.
  10. Select that the frequencies are in [L2].
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (97) , [L2] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (98)

  11. Go back to access other graphs.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (99) , [STAT PLOT]

  12. Use the arrows to turn off the remaining plots.
  13. Access window mode to set the graph parameters.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (100)
    • Xmin=1970Xmin=1970
    • Xmax=2000Xmax=2000
    • Xscl=10Xscl=10 (spacing of tick marks on x-axis)
    • Ymin=0.05Ymin=0.05
    • Ymax=60Ymax=60
    • Yscl=10Yscl=10 (spacing of tick marks on y-axis)
    • Xres=1Xres=1
  14. Be sure to deselect or clear all equations before graphing, using the instructions above.
  15. Press the graph button to see the scatter plot.G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (101)

To see the regression graph

  1. Access the equation menu. The regression equation will be put into Y1.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (102)

  2. Access the vars menu and navigate to <5: Statistics>.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (103) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (104).

  3. Navigate to <EQ>.
  4. <1: RegEQ> contains the regression equation which will be entered in Y1.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (105)

  5. Press the graphing mode button. The regression line will be superimposed over the scatter plot.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (106)

To see the residuals and use them to calculate the critical point for an outlier

  1. Access the list. <RESID> will be an item on the menu. Navigate to it.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (107), [LIST], then <RESID>.

  2. Press enter twice to view the list of residuals. Use the arrows to select them.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (108) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (109).

  3. The critical point for an outlier is1.9VSSEn21.9VSSEn2, where
    • nn = number of pairs of data
    • SSESSE = sum of the squared errors
    • residual2residual2
  4. Store the residuals in [L3].
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (110) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (111) , [L3] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (112).

  5. Calculate the(residual)2n2(residual)2n2. Note thatn2=8n28.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (113) , [L3] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (114) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (115) , thenG Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (116).

  6. Store this value in [L4].
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (117) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (118) , [L4] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (119).

  7. Calculate the critical value using the equation above.
    G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (120) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (121) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (122) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (123) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (124) , [V] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (125) , [LIST]G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (126) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (127) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (128) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (129) , [L4] ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (130) ,G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (131) , thenG Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (132).

  8. Verify that the calculator displays 7.642669563. This is the critical value.
  9. Compare the absolute value of each residual value in [L3] to 7.64. If the absolute value is greater than 7.64, then the (x, y) corresponding point is an outlier. In this case, none of the points is an outlier.

To obtain estimates of y for various x-valuesThere are various ways to determine estimates for "y." One way is to substitute values for "x" in the equation. Another way is to use the G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (133) on the graph of the regression line.

TI-83, 83+, 84, 84+ instructions for distributions and tests

Distributions

Access DISTR for Distributions.

For technical assistance, visit the Texas Instruments website at http://www.ti.com and enter your calculator model into the search box.

Binomial Distribution

  • binompdf(n,p,x) corresponds to P(X = x)
  • binomcdf(n,p,x) corresponds to P(X ≤ x)
  • To see a list of all probabilities for x: 0, 1, . . . , n, leave off the "x" parameter.

Poisson Distribution

  • poissonpdf(λ,x) corresponds to P(X = x)
  • poissoncdf(λ,x) corresponds to P(Xx)

Continuous Distributions (general)

  • uses the value –1EE99 for left bound
  • uses the value 1EE99 for right bound

Normal Distribution

  • normalpdf(x,μ,σ) yields a probability density function value, only useful to plot the normal curve, in which case "x" is the variable
  • normalcdf(left bound, right bound, μ, σ) corresponds to P(left bound < X < right bound)
  • normalcdf(left bound, right bound) corresponds to P(left bound < Z < right bound) – standard normal
  • invNorm(p,μ,σ) yields the critical value, k: P(X < k) = p
  • invNorm(p) yields the critical value, k: P(Z < k) = p for the standard normal

Student's t-Distribution

  • tpdf(x,df) yields the probability density function value, only useful to plot the student-t curve, in which case "x" is the variable)
  • tcdf(left bound, right bound, df) corresponds to P(left bound < t < right bound)

Chi-square Distribution

  • Χ2pdf(x,df) yields the probability density function value, only useful to plot the chi2 curve, in which case "x" is the variable
  • Χ2cdf(left bound, right bound, df) corresponds to P(left bound < Χ2 < right bound)

F Distribution

  • Fpdf(x,dfnum,dfdenom) yields the probability density function value, only useful to plot the F curve, in which case "x" is the variable
  • Fcdf(left bound,right bound,dfnum,dfdenom) corresponds to P(left bound < F < right bound)

Tests and Confidence Intervals

Access STAT and TESTS.

For the confidence intervals and hypothesis tests, you may enter the data into the appropriate lists and press DATA to have the calculator find the sample means and standard deviations. Or, you may enter the sample means and sample standard deviations directly by pressing STAT once in the appropriate tests.

Confidence Intervals

  • ZInterval is the confidence interval for mean when σ is known.
  • TInterval is the confidence interval for mean when σ is unknown; s estimates σ.
  • 1-PropZInt is the confidence interval for proportion.

Note

The confidence levels should be given as percents (e.g., enter "95" or ".95" for a 95 percent confidence level).

Hypothesis Tests

  • Z-Test is the hypothesis test for single mean when σ is known.
  • T-Test is the hypothesis test for single mean when σ is unknown; s estimates σ.
  • 2-SampZTest is the hypothesis test for two independent means when both σs are known.
  • 2-SampTTest is the hypothesis test for two independent means when both σs are unknown.
  • 1-PropZTest is the hypothesis test for a single proportion.
  • 2-PropZTest is the hypothesis test for two proportions.
  • Χ2-Test is the hypothesis test for independence.
  • Χ2GOF-Test is the hypothesis test for goodness-of-fit (TI-84+ only).
  • LinRegTTEST is the hypothesis test for Linear Regression (TI-84+ only).

Note

Input the null hypothesis value in the row below "Inpt." For a test of a single mean, "μ∅" represents the null hypothesis. For a test of a single proportion, "p∅" represents the null hypothesis. Enter the alternate hypothesis on the bottom row.

G Notes for the TI-83, 83+, 84, 84+ Calculators - Statistics | OpenStax (2024)

FAQs

Can you put notes on a TI-83? ›

The TI Keyboard combined with the NoteFolio™ App on your graphing calculator creates a basic word processing tool that will allow the user to create new notes or edit previous notes. In addition, students can select, cut, copy, paste, delete and insert text into notes.

What is the difference between TI-83 and TI-83 Plus? ›

TI-83 Plus

A link port is also built into the calculator in the form of a 2.5 mm jack. The main improvement over the TI-83, however, is the addition of 512 KB of Flash ROM, which allows for operating system upgrades and applications to be installed.

Is there a notes app for TI-84 Plus CE? ›

Using NoteFolio™ Creator PC software, students can transfer notes to and from their graphing calculator to Microsoft® Word files. The Notefolio App is available for the TI-83 Plus, TI-83 Plus Silver Edition, TI-84 Plus, TI-84 Plus Silver Edition, TI-89, TI-89 Titanium, TI-92 Plus, and Voyage™ 200 Graphing Calculators.

How do I format my TI-83? ›

1) Press y L to display the MEMORY menu. 2) Select 7: Reset to display the RESET menu. 3) Press ~ and select 1: All Memory 4) Select 2: Reset to erase all data and programs.

How to do scientific notation on TI-84 Plus? ›

Students can change the TI-84 Plus mode to “Sci” to convert numbers to scientific notation. To change the mode, press M and ► to move to Sci, then press e. The answer will appear with an E. Explain to students that this represents ×10 and the number that follows the E is the exponent.

What can I write on my calculator? ›

  • 7735 (bell) 4509 (gosh)
  • 4915 (sigh) 5507 (loss)
  • 5514 (hiss) 5508 (boss)
  • 4500 (dosh) 175 (slid)
  • 15317 (lies) 3705 (sole)
  • 5637 (legs). 30175 (slide)
  • 30179 (glide) 55178 (bliss)
  • 57105 (soils) 57108 (boils)

How to type letters on TI-84 Plus? ›

To access these letters, first press [ALPHA] and then press the key. For example, because the letter O is in green above the [7] key, to enter this letter, press [ALPHA] and then press [7].

How to clear list on TI-83? ›

Follow the steps below to clear the values in a list:
  1. Press [stat] then [1] to access the List Editor.
  2. Press [←] or [→] to move the cursor underneath the list that you wish to clear.
  3. Press [↑] until the list name is highlighted.
  4. Press [clear]. ...
  5. Press [enter] to clear the list.
Jul 20, 2023

Why is TI-83 so expensive? ›

It's all about supply and demand. Graphing calculators are still widely used by students, and schools have strict boundaries for what these gadgets can do. Many curriculums in American math classes require the use of a TI-83 or TI-84 graphing calculator (or its equivalent).

Is TI-83 Plus still good? ›

Released in 1999, the TI-83 Plus has been such a hit that it's still in classrooms today. Although a newer model, the TI-84, has been released, I still think that the TI-83 Plus is a great choice for high schoolers everywhere, despite being older than all of them.

Can you put games on TI-83 Plus? ›

MirageOS is an operating system that allows you to install games written in Basic on your graphing calculator. It only works for TI-83 Plus, TI-84 Plus, and TI-84 Plus CE models. You can download Mirage OS from TICalc.org.

What can TI-83 do? ›

Easy-to-use graphing calculator for math and science that lets students graph and compare functions, as well as perform data plotting and analysis. Its Flash™ ROM memory allows students to update and add software applications (apps).

Does TI-83 have financial functions? ›

The TI 83 (TI 83 Plus) is a fairly easy, but more difficult than most, to use financial calculator which will serve you well in all finance courses. This tutorial will demonstrate how to use the financial functions to handle basic time value of money problems.

Can you code on a TI-83? ›

TI-BASIC 83,TI-BASIC Z80 or simply TI-BASIC, is the built-in programming language for the Texas Instruments programmable calculators in the TI-83 series. Calculators that implement TI-BASIC have a built in editor for writing programs.

How to store information in TI-83? ›

1) Enter the value that is to be stored (the value can be a numeric expression). 2) Press [STO>]. "->" is copied to the cursor location on the calculator's screen. 3) Press [ALPHA] and then the letter of the variable to which that value will be stored.

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