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Stats 250 W12 Sunday Mar 25 Exam 2 Review Solutions

067 bespecific finalanswert19distribution ii

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Unformatted text preview: ___ md = 0____________ Ha: ______md > 0______________ b. The observed test statistic value is 1.56 and the corresponding p‐value is 0.067. i. What distribution was used to compute the p‐value of 0.067? Be specific. Final answer: ___t(19) distribution __ ii. Consider the following statement regarding this p‐value. If this study were repeated many times, and the null hypothesis were true, we would see a t statistic as large or larger than 1.56 in about 6.7% of the repetitions. Insert what is missing in order for this statement to be correct. c. If the program really had no effect on average, what would have been the expected value of the test statistic? 0 Final answer: ______ ________ 5. Nickel Batteries – Cell phones of a particular brand have used nickel‐cadmium batteries. A manufacturer has developed a new nickel‐metal hydride battery. In a study to compare the two batt...
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