Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 4 - Review - Test - Page 250: 1f

Answer

Slope interpretation: if the temperature increases $1°F$, it is expected that the number of chirps per second will increase by 0.2119. The interpretation for $o°F$ does not make sense.

Work Step by Step

Notice that the lowest temperature is $69.4°F$ and the themperature range is $93.3°F-69.4°F=23.9°F$. So, $0°F$ is far from the smallest observed temperature and we can not use this regression model to predict the number of chirps per second for $0°F$.
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