please answer all parts
Posted: Wed May 11, 2022 3:40 pm
please answer all parts
Population 2 n Assume that both populations are normally distributed. (a) Test whether 14 # 12 at the a= 0.05 level of significance for the given sample data. (b) Construct a 95% confidence interval about 11 - H2 Population 1 19 16.2 3.7 х 14.3 4.1 S (a) Test whether Hy Hy at the a= 0.05 level of significance for the given sample data. Determine the null and alternative hypothesis for this test. O A. Hoit, 712 Hq :Hy > H2 B. Ho H4* H2 Hq H, H2 'c. Ho:ti=12 Hq if #12 OD. Hot = 42 Haiti H2 Detemine the P-value for this hypothesis test. - (Round to three decimal places as needed.) P=
Should the null hypothesis be rejected? O A. Reject Ho, there is not sufficient evidence to conclude that the two populations have different means. 3. Reject Ho, there is sufficient evidence to conclude that the two populations have different means &c. Do not reject Ho, there is not sufficient evidence to conclude that the two populations have different means. OD. Do not reject Ho, there is sufficient evidence to conclude that the two populations have different means. (b) Construct a 95% confidence interval about 11-12 We are 95% confident that the mean difference is between 0.25 and 5.55 (Round to two decimal places as needed. Use ascending order.)
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Should the null hypothesis be rejected? O A. Reject Ho, there is not sufficient evidence to conclude that the two populations have different means. 3. Reject Ho, there is sufficient evidence to conclude that the two populations have different means &c. Do not reject Ho, there is not sufficient evidence to conclude that the two populations have different means. OD. Do not reject Ho, there is sufficient evidence to conclude that the two populations have different means. (b) Construct a 95% confidence interval about 11-12 We are 95% confident that the mean difference is between 0.25 and 5.55 (Round to two decimal places as needed. Use ascending order.)