Efficient manufacturing: Efficiency experts study the processes used to manufacture items in order to make them as efficient aspossible. One of the steps used to manufacture a metal clamp involves the drilling of three holes. In a sample of 70 clamps, themean time to complete this step was 54.2 seconds. Assume that the population standard deviation is o = 9 seconds. Round thecritical value to no less than three decimal places.Part 1 of 2(a) Construct a 98% confidence interval for the mean time needed to complete this step. Round the answer to at least onedecimal place.A 98% confidence interval for the mean is 51.7 <µ < 56.7olaPart: 1 / 2Part 2 of 2(b) Find the sample size needed so that a 99% confidence interval will have margin of error of 1.5.A sample size ofis needed in order to obtain a 99% confidence interval with a marginerror of 1.5. Round the sample size up to the nearest integer.

Given, mean = 54.2 S.D. = 9 n = 70

Answered: Efficient manufacturing: Efficiency…

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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