By NEAS - 4/17/2018 9:58:33 PM
MS Module 6: Inferences Based on Two Samples – homework assignment
(The attached PDF file has better formatting.)
Homework assignment:
Solve end of chapter problem 5 on page 484 (1st ed) / page 496 (2nd ed), showing all work. The numerical answers are in the appendix to the textbook; for the homework assignment, show how the answer is derived.
● For Part (a), explain if this is a lower-tailed, upper-tailed, or two-tailed test.
● Part (b) computes the p value; the distributions are normal and the standard deviations are known, so one may use z values despite the small sample sizes.
● Part (c) computes β (the probability of a Type II error).
● Part (d) computes the needed sample size (instead of the m = n = 10 in the problem).
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