A company that manufactures steel troughs requires that the width of the trough be between 8.31 inches

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A company that manufactures steel troughs requires that the width of the trough be between 8.31 inches and 8.61 inches. The data in the accompanying table contains the widths of the troughs, in inches, for a sample of equals 50.

a. At the 0.05 level of significance, is there evidence that the mean width of the troughs is different from 8.46 inches?

b. Determine the test statistic.

c. Find the p-value.

d. What assumption about the population distribution is needed in order to conduct the test in (a)?

Related Book For answer-question

Managerial Accounting Tools for business decision making

ISBN: 978-1118096895

6th Edition

Authors: Jerry J. Weygandt, Paul D. Kimmel, Donald E. Kieso

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Posted Date: Mar 08, 2020 12:24 PM

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A company that manufactures steel troughs requires that the width of the trough be between 8.31 inches

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Managerial Accounting Tools for business decision making

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