Assume that the differences are normally distributed. Complete parts (a) through (d) below. 7 41.5 46.3...

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Assume that the differences are normally distributed. Complete parts (a) through (d) below. 7 41.5 46.3 Observation 1 2 3 42.3 48.4 49.9 45.9 48.8 53.8 47.2 X Y (a) Determine d; = X - Y for each pair of data. 3 Observation O A. Ho: Hd=0 H: Hd <0 OC. Ho: Hd <0 H: Hd=0 1 2 d (Type integers or decimals.) (b) Compute d and s. d = (Round to three decimal places as needed.) Sd = (Round to three decimal places as needed.) (c) Test if Hd <0 at the x = 0.05 level of significance. What are the correct null and alternative hypotheses? P-value = 4 42.7 Choose the correct conclusion below. 5 6 51.6 43.1 53.7 46.8 (Round to three decimal places as needed.) The lower bound is The upper bound is (Round to two decimal places as needed.) 8 43.1 45.2 7 8 OB. Ho: Hd <0 H: Hd>0 OD. Ho: Hd>0 H: Hd <0 O A. Reject the null hypothesis. There is insufficient evidence that Hd <0 at the x = 0.05 level of significance. B. Do not reject the null hypothesis. There is insufficient evidence that g <0 at the a= 0.05 level of significance. OC. Reject the null hypothesis. There is sufficient evidence that g <0 at the x = 0.05 level of significance. OD. Do not reject the null hypothesis. There is sufficient evidence that Hd <0 at the x = 0.05 level of significance. (d) Compute a 95% confidence interval about the population mean difference Hd. Assume that the differences are normally distributed. Complete parts (a) through (d) below. 7 41.5 46.3 Observation 1 2 3 42.3 48.4 49.9 45.9 48.8 53.8 47.2 X Y (a) Determine d; = X - Y for each pair of data. 3 Observation O A. Ho: Hd=0 H: Hd <0 OC. Ho: Hd <0 H: Hd=0 1 2 d (Type integers or decimals.) (b) Compute d and s. d = (Round to three decimal places as needed.) Sd = (Round to three decimal places as needed.) (c) Test if Hd <0 at the x = 0.05 level of significance. What are the correct null and alternative hypotheses? P-value = 4 42.7 Choose the correct conclusion below. 5 6 51.6 43.1 53.7 46.8 (Round to three decimal places as needed.) The lower bound is The upper bound is (Round to two decimal places as needed.) 8 43.1 45.2 7 8 OB. Ho: Hd <0 H: Hd>0 OD. Ho: Hd>0 H: Hd <0 O A. Reject the null hypothesis. There is insufficient evidence that Hd <0 at the x = 0.05 level of significance. B. Do not reject the null hypothesis. There is insufficient evidence that g <0 at the a= 0.05 level of significance. OC. Reject the null hypothesis. There is sufficient evidence that g <0 at the x = 0.05 level of significance. OD. Do not reject the null hypothesis. There is sufficient evidence that Hd <0 at the x = 0.05 level of significance. (d) Compute a 95% confidence interval about the population mean difference Hd.