A manufacturer claims that the average tensile strength of thread A exceeds the average tensile strength of thread B by at least 13 kilograms. To test this claim, 52 pieces of each type of thread were tested under similar conditions. Type A thread had an average tensile strength of 91.3 kilograms with a standard deviation of 6.31 kilograms, while type B thread had an average tensile strength of 79.5 kilograms with a standard deviation of 4.67 kilograms. Test the manufacturer's claim using a 0.10 level of significance. Do not assume that the population variances are equal. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. O A. Ho: H1 -H2 # 13 H1: 41 - H2 = 13 B. Ho: H1 - H2 = 13 H1: H1- 42> 13 O C. Ho: H1 - H2 < 13 H1:1-H2 = 13 O D. Ho: H1 -H2 = 13 H1: H1 - H2<13 O E. Ho: H1 - H2 = 13 H1: H1- H2#13 O F. Ho: H1 -H2 > 13 H1: H1- H2 = 13 Identify the critical region. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. t'< O B. t'< or t'> YC. t'> 1.29 Find the test statistic. (Round to two decimal places as needed.)

A manufacturer claims that the average tensile strength of thread A exceeds the average tensile strength of thread B by at least 13 kilograms. To test this claim, 52 pieces of each type of thread were tested under similar conditions. Type A thread had an average tensile strength of 91.3 kilograms with a standard deviation of 6.31 kilograms, while type B thread had an average tensile strength of 79.5 kilograms with a standard deviation of 4.67 kilograms. Test the manufacturer's claim using a 0.10 level of significance. Do not assume that the population variances are equal. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. O A. Ho: H1 -H2 # 13 H1: 41 - H2 = 13 B. Ho: H1 - H2 = 13 H1: H1- 42> 13 O C. Ho: H1 - H2 < 13 H1:1-H2 = 13 O D. Ho: H1 -H2 = 13 H1: H1 - H2<13 O E. Ho: H1 - H2 = 13 H1: H1- H2#13 O F. Ho: H1 -H2 > 13 H1: H1- H2 = 13 Identify the critical region. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. t'< O B. t'< or t'> YC. t'> 1.29 Find the test statistic. (Round to two decimal places as needed.)

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Description: A manufacturer claims that the average tensile strength of thread A exceeds the average tensile strength of thread B by at least 13kilograms. To test this claim, 52 pieces of each type of thread were tested under similar conditions. Type A thread ha

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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A manufacturer claims that the average tensile strength of thread A exceeds the average tensile strength of thread B by at least 13 kilograms. To test this claim, 51 pieces of each type of thread were tested under similar conditions. Type A thread had an average tensile strength of 89.8 kilograms with a standard deviation of 5.95 kilograms, while type B thread had an average tensile strength of 79.8 kilograms with a standard deviation of 5.37 kilograms. Test the manufacturer's claim using a 0.05 level of significance. Do not assume that the population variances are equal. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. Let type A thread correspond to population 1 and let type B thread correspond to population 2. Identify the null and alternative hypotheses. Choose the correct answer below. B. Ho: H1 - H2 = 13 Ho: H1 - H2 > 13 H1: H1 - H2 = 13 A. Ho: H1 - H2 = 13 %3D H1: H1…
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