#### Answer

$\mu_1-\mu_2$ is between -17.32 and -11.61 cm.

#### Work Step by Step

We can interchange the populations by multiplying the whole confidence interval by (-1), hence: $\mu_1-\mu_2$ is between -17.32 and -11.61 cm.

Published by
Pearson

ISBN 10:
0321836960

ISBN 13:
978-0-32183-696-0

$\mu_1-\mu_2$ is between -17.32 and -11.61 cm.

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