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The following MINITAB output presents the results of a hypothesis test for the difference Hx - Hy between two population means. Paired T for X - Y Mean StDev SE Mean 12 134.233 68.376 19.739 12 100.601 94.583 27.304 Difference 12 33.6316 59.5113 17.1794 95% lower bound for mean difference: 2.7793 T-Test of mean difference = 0 (vs > 0): T-Value = 1.96 P-Value = 0.038 Is this a one-tailed or two-tailed test? What is the null hypothesis? Can H, be rejected at the 1% level? How can you tell? a. b. C. d. Use the output and an appropriate table to compute a 98% confidence interval for µx Hy.

The following MINITAB output presents the results of a hypothesis test for the difference Hx - Hy between two population means. Paired T for X - Y Mean StDev SE Mean 12 134.233 68.376 19.739 12 100.601 94.583 27.304 Difference 12 33.6316 59.5113 17.1794 95% lower bound for mean difference: 2.7793 T-Test of mean difference = 0 (vs > 0): T-Value = 1.96 P-Value = 0.038 Is this a one-tailed or two-tailed test? What is the null hypothesis? Can H, be rejected at the 1% level? How can you tell? a. b. C. d. Use the output and an appropriate table to compute a 98% confidence interval for µx Hy.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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The following MINITAB output presents the results of a hypothesis test for the difference Hx - Hy between two population means. Paired T for X - Y Mean StDev SE Mean 12 134.233 68.376 19.739 12 100.601 94.583 27.304 Difference 12 33.6316 59.5113 17.1794 95% lower bound for mean difference: 2.7793 T-Test of mean difference = 0 (vs > 0): T-Value = 1.96 P-Value = 0.038 Is this a one-tailed or two-tailed test? What is the null hypothesis? Can H, be rejected at the 1% level? How can you tell? a. b. C. d. Use the output and an appropriate table to compute a 98% confidence interval for µx Hy.
Transcribed Image Text:The following MINITAB output presents the results of a hypothesis test for the difference Hx - Hy between two population means. Paired T for X - Y Mean StDev SE Mean 12 134.233 68.376 19.739 12 100.601 94.583 27.304 Difference 12 33.6316 59.5113 17.1794 95% lower bound for mean difference: 2.7793 T-Test of mean difference = 0 (vs > 0): T-Value = 1.96 P-Value = 0.038 Is this a one-tailed or two-tailed test? What is the null hypothesis? Can H, be rejected at the 1% level? How can you tell? a. b. C. d. Use the output and an appropriate table to compute a 98% confidence interval for µx Hy.
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