The Dodge Reports are used by many companies in the construction field to estimate the time required to complete various jobs. The company managers want to know ifthe time required to install 130 square feet of bathroom tile is different from the nine hours reported in the current manual. A researcher for Dodge randomly selects 55construction workers and determines the time required to install 130 square feet of bath tile. The average time required to install the tile for the sample is 10.3 hourswith a standard deviation of 4.2 hours. Use a hypothesis test to determine whether the managers' assumptions are substantiated by the data. Use a significance level ofa = 0.05. Assume the population of tile installation times is approximately normally distributed.Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.

The sample mean is 10.3 and the standard deviation is 4.2.The hypothesized mean is 9.The sample size…

Answered: The Dodge Reports are used by many…

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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