Question 21 A quality-assurance inspector periodically examines the output of a machine to determine whether it is properly adjusted. When set properly, the machine produces nails having a mean length of 2.000 inches, with a standard deviation of 0.070 inches. For a sample of 35 nails, the mean length is 2.025 inches. If the null and alternative hypotheses can be used to conclude that the machine is adjusted properly, at 15% level of significance, do you reject or fail reject H0? Reject H0 because Z-statistic is greater than z-critical Reject H0 because Z-critical is more than 1.435 Reject H0 because Z-critical is less than -1.435 Reject H0 because Z-critical lies between 1.435 and -1.435

Question 21 A quality-assurance inspector periodically examines the output of a machine to determine whether it is properly adjusted. When set properly, the machine produces nails having a mean length of 2.000 inches, with a standard deviation of 0.070 inches. For a sample of 35 nails, the mean length is 2.025 inches. If the null and alternative hypotheses can be used to conclude that the machine is adjusted properly, at 15% level of significance, do you reject or fail reject H0? Reject H0 because Z-statistic is greater than z-critical Reject H0 because Z-critical is more than 1.435 Reject H0 because Z-critical is less than -1.435 Reject H0 because Z-critical lies between 1.435 and -1.435

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Description: Question 21A quality-assurance inspector periodically examines the output of a machine to determine whether it is properly adjusted. When set properly, the machine produces nails having a mean length of 2.000 inches, with a standard deviation of 0.07

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 8SGR

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Question 21

A quality-assurance inspector periodically examines the output of a machine to determine whether it is properly adjusted. When set properly, the machine produces nails having a mean length of 2.000 inches, with a standard deviation of 0.070 inches. For a sample of 35 nails, the mean length is 2.025 inches.

If the null and alternative hypotheses can be used to conclude that the machine is adjusted properly, at 15% level of significance, do you reject or fail reject H0?

		Reject H0 because Z-statistic is greater than z-critical
		Reject H0 because Z-critical is more than 1.435
		Reject H0 because Z-critical is less than -1.435
		Reject H0 because Z-critical lies between 1.435 and -1.435

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