MAT 122 Study Guide - Final Guide: Minitab, Standard Deviation, Ghrelin
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You must show all work to receive credit. If using minitab you must include a printout of your test results: in a study of the e ects of marijuana use, light and heavy users of marijuana were tested for memory recall, with the results given below. Use a . 07 signi cance level to test the claim that the population of heavy marijuana smokers has a standard deviation di erent from that of light users. 1: cases of violent crimes are randomly selected and categorized by month, with the results shown below. Use a . 05 signi cance level to test the claim that the rate of violent crime is the same for each month. 783: state the appropriate null and alternative hypothesis for this question, find the p-value, make an appropriate conclusion about the null and alternative hypothesis, answer the main question.
