Question: The study explored the mean sentence lengths and standard deviation of sentences of cases that followed guidelines and those that did not. In 967 cases,

The study explored the mean sentence lengths and standard deviation of sentences of cases that followed guidelines and those that did not. In 967 cases, guidelines were followed. Those cases had a standard deviation of 3.92 months (p. 40). Assuming the population standard deviation for all cases of the same nature was 11 months, test the claim that the standard deviation for the 967 guideline cases is less than the population standard deviation of 11 months with = .025 (use df = 950 if doing it by hand). What type of test is this? Question 15 Answer a. T-test for Pop. Proportion b. T-test for Mean c. Chi Test for Std Dev

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