Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 9 - Section 9.2 - Assess Your Understanding - Applying the Concepts - Page 451: 41c

Answer

The distribution of the cell phone bills is skewed right, that is, it is not normally distributed. Therefore, the sample must be large. So, the distribution of the mean monthly cell phone bill will be approximately normal.

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