- Independent Random Samples Were Selected From Two Quantitative Populations With Sample Sizes Means And Variances Give 1 (115.51 KiB) Viewed 26 times
- Independent Random Samples Were Selected From Two Quantitative Populations With Sample Sizes Means And Variances Give 2 (155.04 KiB) Viewed 26 times
Independent random samples were selected from two quantitative populations, with sample sizes, means, and variances given below. Population 1 2 38 45 Sample Size Sample Mean Sample Variance 9.9 7.5 10.63 16.39 State the null and alternative hypotheses used to test for a difference in the two population means. OHO: (H1-H2) + 0 versus H: (M-H2) = 0 HO: (N, H2) = 0 versus H: (M-H2) + 0 Hoi (My - M2) = 0 versus Ha: (M-H2) < 0 O Ho: (- H2) < 0 versus H (- H2) > 0 O Ho: (H - H2) = 0 versus Ho: (4, - M2) > 0 Z= Calculate the necessary test statistic. (Round your answer to two decimal places.) W Calculate the rejection region with a = 0.01. (Round your answers to two decimal places. If the test is one-tailed, enter NONE for the unused regia z> Draw the appropriate conclusion. OH, is rejected. There is sufficient evidence to indicate a difference in mean. O He is not rejected. There is insufficient evidence to indicate a difference in mean. OH, is rejected. There is insufficient evidence to indicate a difference in mean. OH, is not rejected. There is sufficient evidence to indicate a difference in mean. You may need to use the appropriate appendix table or technology to answer this question.
Independent random samples were selected from two quantitative populations, with sample sizes, means, and variances given below. Population 1 2 33 46 Sample Size Sample Mean Sample Variance 9.8 7.3 10.68 16.54 The value of the test statistic is 3.02. 1 USE SALT Calculate the p-value for a test of significant difference in the population means for the given data. (Round your answer to four decimal places.) p-value Use the p-value to test for a significant difference in the population means at the 1% significance level. Ho is rejected. There is sufficient evidence to indicate a difference in means. O Ho is not rejected. There is insufficient evidence to indicate a difference in means. OH, is rejected. There is insufficient evidence to indicate a difference in means. OH is not rejected. There is sufficient evidence to indicate a difference in means.