Answered: A factory that manufactures screws is…

Name: A factory that manufactures screws is performing a quality control exp
Uploaded: 2024-03-20T07:07:12.000Z
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Description: A factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than 16 centimeters. The factory believes that the length of the screws exceeds this value and measures the length of 95 screws

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 factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than 16 centimeters. The factory believes that the length of the screws exceeds this value and measures the length of 95 screws. The sample mean screw length was 15.92 centimeters. The population standard deviation is known to be σ=0.15 centimeters.

What is the null hypothesis?

What is the alternative hypothesis?

Expert Solution

Step 1

Given Data:

Population mean ( $μ$ )=16

Population Standard Deviation ( $σ$ )=0.15

Sample mean=15.92

n=95

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