For the following exercises, use the traditional method of hypothesis testing unless otherwise specified. The output in

Question:

For the following exercises, use the traditional method of hypothesis testing unless otherwise specified.

The output in revolutions per minute (rpm) of 10 motors was obtained. The motorswere tested again under similar conditions after they had been reconditioned. The data are shown. At α = 0.05, did the reconditioning improve the motors’ performance? Use the Wilcoxon signed-rank test.