Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 10 - Section 10.3 - Assess Your Understanding - Explaining the Concepts - Page 507: 39

Answer

The mean age of full-time students found (27.1 years) is the population mean, not a sample mean.

Work Step by Step

Since 27.1 years is the mean of the entire population (4934 full-time students), it is not necessary to conduct a hypothesis test. The mean age of full-time students did decline with 100% certainty.
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