Chapter ten
STATISTICAL TESTS
Introducing the Topic
In this chapter, you and your students will learn how to use the Sharp graphing calculator to perform several statistical tests. A statistical test assists in making a decision between two hypotheses. A statistical test contains five components: a null hypothesis, an alternate hypothesis, an observed statistic from the sample, a rejection statistic for making a decision, and the decision itself.
The null hypothesis is generally a statement of equality, whereas the alternate hypothesis is a statement of inequality (≠ , <, or >). Each of the five components of the statistical test will be identified in each problem addressed.
Calculator Operations
Turn the calculator on and press STAT to enter the statistics menu. Touch A EDIT and press ENTER to access the data entry screen. Delete old data and enter the following data set for L1:
7 | 10 | 7 | 6 | 8 | 10 | 15 | 14 | 11 |
12 | 6 | 11 | 11 | 5 | 7 | 9 | 9 | 7 |
Check the data you have entered and correct any errors you may find.
Statistical Tests/STATISTICS USING THE SHARP | 49 |
