Inexpensive bathroom scales are not consistently accurate. A manufacturer of bathroom scales says that when a150-pound weight is placed on all the scales produced in his factory, the weight indicated by the scales is Normallydistributed with a mean of 150 pounds and a standard deviation of 2 pounds. A consumer advocacy groupacquires a randomly selected group of 12 scales from the manufacturer and weighs a 150 weight on each one.They get a mean weight of 151 pounds, which makes them suspicious about the company's claim. To test this,they use a computer to simulate 200 samples of 12 scales from a Normal population with a mean of 150 poundsand standard deviation 2 pounds. Below is a dotplot of the means from these 200 samples.148.0 148.5 149.0 149.5 150.0 150.5 151.0 151.5Mean weight (pounds)(a) What is the population in this situation, and what population parameters have we been given?(b) The distribution of one sample is described in the opening paragraph. What information have we been givenabout this sample?(c) Is the dotplot above a sampling distribution? Explain.(d) Do you think the manufacturer is being honest about the accuracy of its bathroom scales? Justify youranswer.

Given population mean = 150 population standard deviation =2

Answered: Inexpensive bathroom scales are not…

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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