Pt 2

For the following hypothesis testing questions, you may use either the p-value method or the rejection region method. For full credit, be sure to show: The null and alternative hypotheses The p-value or test statistic/rejection region (depending on method used) . . The decision (reject HO or fail to reject HO) The interpretation 4. The aluminum bottle is reported to cool faster and stay cold longer than typical glass bottles. A small brewery tests this claim and obtains the following information regarding the time (in minutes) required to chill a bottle of beer from room temperature. Clear Glass Aluminum Sample Size 42 35 Mean time to chill (mins) 133.8 92.4 Sample S.D. 9.9 7.3 Is there evidence the time to chill is more variable with the clear glass bottles