Question 1:The sales representative for a manufacturer of a new product claims that the product will increase output per machine by at least 29 units per hour. A line manager installs the product on 30 of the machines, and finds that the average increase was only 26 with a standard deviation of 6.2. Using a 5% significance level, which of the following statements is true? Reject H0 if t statistic < -1.699 Reject H0 if t statistic > -1.711 Reject H0 if t statistic < -1.761 Reject H0 if t statistic < -2.16 Question 2:What is the critical value for an upper‐tailed hypothesis test of the population mean when the population variance is unknown in which a null hypothesis is tested at the 0.10 level of significance based on a sample size of 19? 1.645 1.328 1.734 1.740 Question 3A two-tailed test is performed at 95% confidence. The p-value is determined to be 0.0478. The null hypothesis must be rejected should not be rejected could be rejected, depending on the sample size has been designed incorrectly

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Answered: The sales representative for a…

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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Question 1:

The sales representative for a manufacturer of a new product claims that the product will increase output per machine by at least 29 units per hour. A line manager installs the product on 30 of the machines, and finds that the average increase was only 26 with a standard deviation of 6.2. Using a 5% significance level, which of the following statements is true?

		Reject H0 if t statistic < -1.699
		Reject H0 if t statistic > -1.711
		Reject H0 if t statistic < -1.761
		Reject H0 if t statistic < -2.16

Question 2:

What is the critical value for an upper‐tailed hypothesis test of the population mean when the population variance is unknown in which a null hypothesis is tested at the 0.10 level of significance based on a sample size of 19?