Basic Business Statistics, Student Value Edition
Basic Business Statistics, Student Value Edition
14th Edition
ISBN: 9780134685113
Author: Mark L. Berenson, David M. Levine, David F. Stephan, Kathryn Szabat
Publisher: PEARSON
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Chapter 11, Problem 7PS

One of the steps involved in the processing of corn flakes for cereals involves toasting the flakes. The file CornFlakes contains the following data for corn flakes thickness (mm) for four different toasting times (seconds).

Chapter 11, Problem 7PS, One of the steps involved in the processing of corn flakes for cereals involves toasting the flakes.

a. At the 0.05 level of significance, is there evidence of a difference in the mean thickness of the corn flakes for the different toasting times?

b. if appropriate, determine which toasting times differ in mean thickness.

c. At the 0.05 level of significance, is there evidence of a difference in the variation in the mean thickness of the cornflakes?

d. Which toasting times differ in thickness of the corn flakes? Explain.

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Basic Business Statistics, Student Value Edition

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