Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 1 - Introduction to Statistics - 1-2 Statistical and Critical Thinking - Basic Skills and Concepts: 13

Answer

Not statistically significant, but practically significant.

Work Step by Step

There is a 30 percent chance of getting such results with a diet, which has no effect. 30 percent is too much to be statistically significant. On the other hand, the difference is large anough in a practical aspect, therefore the average loss of 45 pounds is practically significant.
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