The accompanying data table compares the prices of some kitchen staples at two grocery stores, A and B. Complete parts (a) to (d). Click the icon to view the data table. a. At the 0.05 level of significance, is there evidence of a difference in the mean prices between store A and store B ? Let 1 be the mean price at store A and 2 be the mean price at store B. Determine the null and alternative hypotheses for this test. A. H0:D0 (where D=12 ) B. H0:D=0( where D=12) H1:D0 H1:D=0 The test statistic is tSTAT= (Round to two decimal places as needed.) The critical value(s) is(are) (Use a comma to separate answers as needed. Round to two decimal places as needed.) C. It must be assumed that the distribution of the difterences between the measurements is approximately normal. . Determine the p-value in (a) and interpret its meaning. 'he test statistic gives a p-value of Round to two decimal places as needed.) terpret the meaning of the p-value in (a). Choose the correct answer below. A. The p-value is the probability of obtaining a sample mean difference less extreme than this one if the population mean prices at the two stores are different. B. The p-value is the probability of failing to reject the null hypothesis when it is actually false. C. The p-value is the probability of obtaining a sample mean difference at least as extreme as this one if the population mean prices at the two stores are the same. . Construct a 95% confidence interval estimate of the difference in the mean prices between the two stores. The accompanying data table compares the prices of some kitchen staples at two grocery stores, A and B. Complete parts (a) to (d). Click the icon to view the data table. a. At the 0.05 level of significance, is there evidence of a difference in the mean prices between store A and store B ? Let 1 be the mean price at store A and 2 be the mean price at store B. Determine the null and alternative hypotheses for this test. A. H0:D0 (where D=12 ) B. H0:D=0( where D=12) H1:D0 H1:D=0 The test statistic is tSTAT= (Round to two decimal places as needed.) The critical value(s) is(are) (Use a comma to separate answers as needed. Round to two decimal places as needed.) C. It must be assumed that the distribution of the difterences between the measurements is approximately normal. . Determine the p-value in (a) and interpret its meaning. 'he test statistic gives a p-value of Round to two decimal places as needed.) terpret the meaning of the p-value in (a). Choose the correct answer below. A. The p-value is the probability of obtaining a sample mean difference less extreme than this one if the population mean prices at the two stores are different. B. The p-value is the probability of failing to reject the null hypothesis when it is actually false. C. The p-value is the probability of obtaining a sample mean difference at least as extreme as this one if the population mean prices at the two stores are the same. . Construct a 95% confidence interval estimate of the difference in the mean prices between the two stores
