Answered: A statistics class weighed 20 bags of…

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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Question

A statistics class weighed 20 bags of grapes purchased from the store. The bags are advertised to contain 16 ounces, on average. The class calculated the 90% confidence interval for the true mean weight of bags of grapes from this store to be (15.875, 16.595) ounces. Is the store justified in stating that the average weight of the bags of grapes is 16 ounces? O The store is not justified in stating that the average weight of the bags is 16 ounces because the sample mean of 16.235 ounces is more than 16 ounces. O The store may be justified in stating that the average weight of the bags is 16 ounces because 16 ounces is in the confidence interval. O The store is justified in stating that the average weight of the bags is 16 ounces because 16 ounces is in the confidence interval. O The store is not justified in stating that the average weight of the bags is 16 ounces because the majority of the confidence interval is above 16 ounces.

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