Assume that both populations are normally distributed. (a) Test whether u, #42 at the a= 0.01 level of significance for the given sample data. (b) Construct a 99% confidence interval about u, - 42. (a) Test whether u, # µ2 at the a = 0.01 level of significance for the given sample data. Determine the null and alternative hypothesis for this test. A. HoiH1=H2 O B. Ho H1 #H2 O C. Ho H1 # H2 H, Hy> H2 O D. HOH1 = H2 Detemine the P-value for this hypothesis test. P= (Round to three decimal places as needed.)

Assume that both populations are normally distributed. (a) Test whether u, #42 at the a= 0.01 level of significance for the given sample data. (b) Construct a 99% confidence interval about u, - 42. (a) Test whether u, # µ2 at the a = 0.01 level of significance for the given sample data. Determine the null and alternative hypothesis for this test. A. HoiH1=H2 O B. Ho H1 #H2 O C. Ho H1 # H2 H, Hy> H2 O D. HOH1 = H2 Detemine the P-value for this hypothesis test. P= (Round to three decimal places as needed.)

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Description: Assume that both populations are normally distributed.(a) Test whether u, # µ2 at the a = 0.01 level of significance for the given sample data.(b) Construct a 99% confidence interval about u, - 42.(a) Test whether u, # µ2 at the a = 0.01 level of si

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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Consider the following results for two independent random samples taken from two populations. Sample 1 Sample 2 n 1 = 50 n 2 = 30 X 1 = 13.9 X 2 = 11.2 O 1 = 2,4 O 2 = 3.5 a. What is the point estimate of the difference between the two population means? (to 1 decimal) b. Provide a 90% confidence interval for the difference between the two population means (to 2 decimals). Use z-table. c. Provide a 95% confidence interval for the difference between the two population means (to 2 decimals). Use z-table. If your answer is negative, enter minus (-) sign.
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12. A new manufacturing process of component parts is being considered. Samples were taken improves the proportion of defective components. 1425 of 1500 components from the existing process and 1920 of 2000 components from the new process were found to be non-defective. 75 80 P1 = = 0.05, P2 = 0.04 and Pi - P2 = 0.05 - 0.04 = 0.01 1500 2000 a. Find a 99% confidence interval for the true difference in the fraction of defectives between the existing and the new processes? b. Based on your answer in (a), is there any significant difference between the existing and the new processes? Justify?
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Provide an appropriate response. Test the hypothesis that p1 = P2. Use a = 0.05. The sample statistics listed below are from independent samples. Sample statistics: n1 = 50, x1 35, and n2 = 60, x2 = 40 Step 1) State the null and alternative hypotheses. Step 2) Determine the critical value for the level of significance, a. Step 3) Find the test statistic or P-value. Step 4) Will the researcher reject the null hypothesis or do not the null hypothesis: Step 5) Write the conclusion. HTML Editor BIUA A、IE三= Ex x E 曲。 12pt Pa SAMSUNG 10
Use the given statistics to complete parts (a) and (b). Assume that the populations are normally distributed. (a) Test whether u1 > H2 at the a = 0.01 level of significance for the given sample data. Population 1 Population 2 24 25 49.6 4.1 (b) Construct a 95% confidence interval about u1 - H2. 45.8 12.7 (a) Identify the null and alternative hypotheses for this test. B. Ho: H1 = H2 H1: H1>H2 O A. Ho: H1 = H2 O C. Ho: H1 + H2 H1: H1 = H2 H1: H1 #H2 O D. Ho: H1 H2 H1: H1 = H2 Find the test statistic for this hypothesis test. (Round to two decimal places as needed.)