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Figure a and outputs (Figure A) Food Grocery 1 Grocery 2 Bananas/1 lb 1.09 1.09 Grape tomatoes/1 lb 4.19 3.99 Russet potato/5 lb 4.89 4.99
Figure a and outputs (Figure A) Food Grocery 1 Grocery 2 Bananas/1 lb 1.09 1.09 Grape tomatoes/1 lb 4.19 3.99 Russet potato/5 lb 4.89 4.99 (Figure B) Paired T-Test and Cl: Grocery 1, Grocery 2 N Mean StDev SE Mean Grocery 1 37 3.16 1.23 0.20 Grocery 2 37 3.04 1.19 0.20 Difference 37 0.12 1.18 0.19 95% CI for difference: ( - 0.273,0.513) T-Test of mean difference = 0 (vs # ): T-Value = 0.62 P-value = 0.540 (Figure C) Two-sample T-Test and Cl: Grocery 1, Grocery 2 N Mean StDev SE Mean Grocery 1 37 3.16 1.23 0.20 Grocery 2 37 3.04 1.19 0.20 Difference = p (Grocery 1) - p (Grocery 2) Estimate for difference: 0.12 95% CI for difference: ( - 0.441,0.681) T-Test of difference = 0 (vs # ): T-Value = 0.43 P-value = 0.671A student compared organic food prices at Grocery 1 and Grocery 2. The same items were priced at each store. The first three items are shown in the accompanying Figure A. Choose the correct accompanying output (B or C) for the appropriate test, explaining why you chose that output. Then test the hypothesis that the population means are not equal using a significance level of 0.05. Assume that all necessary conditions for carrying out a hypothesis test hold. i Click the icon to view Figure A and the outputs. Which is the correct output (B or C) for the appropriate test? Explain. O A. Output C is appropriate because there are two samples. O B. Output B is appropriate because the data are paired samples. O C. Output B is appropriate because n 2 25. O D. Output C is appropriate because the data are independent samples. Test the hypothesis that the population means are not equal using a significance level of 0.05. Determine the hypotheses for this test. Let Udifference be the population mean difference between Grocery 1 prices and Grocery 2 prices. Choose the correct answer below. O A. Ho: Hdifference = 0 O B. Ho: Hdifference 0 OF. Ho: Hdifference = 0 Ha: Hdifference # 0 Ha: Hdifference > 0 Determine the test statistic for this test. t= (Type an integer or a decimal. Do not round.) Determine the p-value for this test. p-value = (Type an integer or a decimal. Do not round.) What is the conclusion for this test? O A. Do not reject Ho. The population means are not significantly different. O B. Do not reject Ho. The population means are significantly different. O C. Reject Ho. The population means are significantly different. O D. Reject Ho. The population means are not significantly different
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