8.23 A manufacturing company produces electric insulators. Youdefine the variable of interest as the strength of the insulators. Ifthe insulators break when in use, a short circuit is likely. To test thestrength of the insulators, you carry out destructive testing to deter-mine how much force is required to break the insulators. You mea-sure force by observing how many pounds are applied to the insulatorbefore it breaks. You collect the force data for 30 insulators selectedfor the experiment and organize and store these data in Force:1,6341,784 1,552 1,6961,870 1,728 1,656 1,610 1,6341,656 1,6101,592 1,662 1,866 1,764 1,7341,662 1,734 1,7741,550 1,756 1,762 1,886 1,820 1,744 1,788 1,6881,810 1,752 1,680 1,810 1,652 1,736a. Construct a 95% confidence interval estimate for the populationmean force.b. What assumption must you make about the population distribu-tion in order to construct the confidence interval estimate in (a)?

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Answered: 8.23 A manufacturing company produces…

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 student is concerned with the amount of air pollution students are exposed to in the school's parking lot after school. The student conducts an investigation to compare the quantity of particulate matter released from the diesel-powered buses, natural gas-powered buses, and the large and small cars as they idle waiting to pick up students. To make measurements, a small piece of white fabric is used to collect particulate matter from the tailpipe of each vehicle as it idles for five minutes. Each piece of fabric is then analyzed to measure the amount of particulate matter it collected. (i) Identify the independent variable in the investigation. (j) Identify one variable that was not mentioned in the description that could affect the results of the investigation. (k) Describe a realistic alternate sampling method to collect particulate matter from the vehicles in the investigation. (1) The student wants to ensure that the results are reliable. Explain how the student could modify the…
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