Sample 2 Assume that both populations are normally distributed. a) Test whether u, +µ2 at the a = 0.05 level of significance for the given sample data. b) Construct a 95% confidence interval about µ1 - 42- Sample 1 10 10.9 10 8.9 3.1 2.2 Click the icon to view the Student t-distribution table. A. Ho: H1 =H2, Hq: Hy> H2 B. Ho: H1 = H2, H1:H1 #H2 C. Ho: H1 = 42, H,:H1

Sample 2 Assume that both populations are normally distributed. a) Test whether u, +µ2 at the a = 0.05 level of significance for the given sample data. b) Construct a 95% confidence interval about µ1 - 42- Sample 1 10 10.9 10 8.9 3.1 2.2 Click the icon to view the Student t-distribution table. A. Ho: H1 =H2, Hq: Hy> H2 B. Ho: H1 = H2, H1:H1 #H2 C. Ho: H1 = 42, H,:H1

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Sample 2 Assume that both populations are normally distributed. a) Test whether µ, # µ, at the a = 0.05 level of significance for the given sample data. b) Construct a 95% confidence interval about u, - H2. Sample 1 17 13 17 14.3 3.5 3.1 E Click the icon to view the Student t-distribution table. A. Ho: H1 = H2, Hq: Hq # Hz O B. Ho: H1 = H2, H,: Hy H2 Determine the test statistic. t= - 1.15 (Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to three decimal places as needed.) O A. The critical value is O B. The lower critical value is -2.040. The upper critical value is 2.040. Should the hypothesis be rejected? Do not reject the null hypothesis because the test statistic is not in the critical region. b) Construct a 95% confidence interval about u, - H2. The confidence interval is the range from to| (Round to two decimal places as needed. Use ascending order.)
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un a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes (before - after) in their levels of LDL cholesterol (in mg/dL) have a mean of 2.8 and a standard deviation of 19.5. Construct a 99% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol? Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. .... What is the confidence interval estimate of the population mean µ? mg/dL < µ
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