The length of 55 items from a manufacturer was measured and the mean length of this sample was foundto be 1.31 m. It is known from previous data sets that the standard deviation of length of this item is 5.0cm.a) Find the 95% confidence interval for the average measurementμεb) Using a 5% significance level, is it plausible that the mean of the product length is greater than 1.32 m?(Answer 'Yes/No' in the blank and make sure you justify your answer on your scratch paper)

It is given that the sample mean is 1.31 m and the population standard deviation is 5 cm.Convert the…

Answered: The length of 55 items from a…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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