a. What are the null and alternative hypotheses? b. At a 99% confidence level, what is the value of alpha (a), What is the critical value (CV comes from the Excel output below) What is the value of the test statistic (from the Excel output below) What is the p-value associated with the sample statistic? (from the Excel output below) c. d. e. Compare PV to alpha (include values in comparison) and TS to CV (include values from output in your comparison) f. g. h. What is your Decision? (reject/fail to reject Ho) What is your conclusion (in everyday terms) Use the Excel Output below to answer the questions above for Part I Excel Output t-Test: Two-Sample Assuming Unequal Variances With No Pool Pool Mean 202.7974 231.4851 Variance 1136.031 2557.258 Observations Hypothesized Mean Difference df t Stat P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail 38 67 100 -3.47727 0.000376 2.364217 0.000751 2.625891

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