Stat calculator directions

Stat calculator directions - USING A TI-83 OR TI-84 SERIES...

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U SING A TI-83 OR TI-84 S ERIES G RAPHING C ALCULATOR IN AN I NTRODUCTORY S TATISTICS C LASS W. S COTT S TREET , IV D EPARTMENT OF S TATISTICAL S CIENCES & O PERATIONS R ESEARCH V IRGINIA C OMMONWEALTH U NIVERSITY

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i © 2006 W. Scott Street, IV Table of Contents Getting to Know Your TI-83/84 Calculator Introduction . ........................................................... 1 Owner Program . ...................................................................... 2 Data Graphs, and Univariate Statistics in the TI-83/84 Entering Data . .......................................................................... 3 Plotting Statistical Graphs . ....................................................... 4 Preparation Frequency Histograms Histograms of Grouped Data Boxplots and Modified Boxplots Univariate Statistics (Statistics for One Variable). .................... 7 Relative Frequencies Sample Mean Standard Deviation Sum of the Data Values Sum of the Squared Data Values Sample Size Five-Number Summary Normal Distribution Methods in the TI-83/84 Normal Probabilities. ................................................................ 8 Finding a Z -score for a Specified Area ( Z α )............................. 9 Finding Observations for a Specified Percentage or Area. ....... 9 Assessing Normality of Data (Normal Probability Plots). ....... 10 Regression Methods in the TI-83/84 Creating Scatterplots. ............................................................. 11 Bivariate Statistics (Statistics for Two Variables). .................. 12 Least-Squares Linear Regression . .......................................... 13 Regression Equation ( ˆ y=a+bx ) Correlation Coefficient ( r ) Coefficient of Determination ( r 2 ) Prediction Residual Analysis Discrete Random Variables in the TI-83/84 Expected Value (Mean) of a Discrete Random Variable. ........ 16 Standard Deviation of a Discrete Random Variable. ............... 16

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ii © 2006 W. Scott Street, IV Binomial Probabilities in the TI-83/84 Factorials. ............................................................................... 17 Binomial Coefficients. ............................................................. 17 Binomial Probabilities. ............................................................. 17 Cumulative Binomial Probabilities. .......................................... 18 Inference on Means in the TI-83/84, Part 1 Confidence Intervals for μ (when σ is known) . ..................... 19 Data is in one list Data is in a frequency distribution table Summary statistics for the data are given Hypothesis Tests for (when is known). ........................... 22 Data is in one list Data is in a frequency distribution table Summary statistics for the data are given Inference on Means in the TI-83/84, Part 2 Confidence Intervals for (normal pop., is not known). .... 25 Data is in one list Data is in a frequency distribution table Summary statistics for the data are given Hypothesis Tests for (normal pop., is not known) . ......... 28 Data is in one list Data is in a frequency distribution table Summary statistics for the data are given Inference on Means in the TI-83/84, Part 3 Confidence Intervals for 1 2 .............................................. 31 1 and 2 are known (or large sample sizes) Normal populations, where 1 = 2 but are unknown Normal populations, where 1 2 but are unknown Hypothesis Tests for 1 = 2 ................................................... 34 1 and 2 are known (or large sample sizes) Normal populations, where 1 = 2 but are unknown Normal populations, where 1 2 but are unknown Inference on Proportions in the TI-83/84 Confidence Intervals for π ...................................................... 37 Hypothesis Tests for ........................................................... 38 Confidence Intervals for 1 2 .............................................. 39 Hypothesis Tests for 1 = 2 ................................................... 40
1 © 2006 W. Scott Street, IV Getting to Know Your TI-83/84 Press É to begin using calculator. To stop, press y É M . To darken the screen, press y } alternately. To lighten the screen, press y † alternately. Press y Ã L to reset or clear the memory of the calculator.

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This note was uploaded on 06/11/2010 for the course CHFD 2200 taught by Professor L during the Spring '10 term at UGA.

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Stat calculator directions - USING A TI-83 OR TI-84 SERIES...

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