To test the effect of a physical fitness course on ones

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Reference no: EM13609001

To test the effect of a physical fitness course on one's physical ability, the number of sit-ups that a person could do in 1 minute, both before and after the course, was recorded. Ten randomly selected participants scored as shown in the following table. Can you conclude that a significant amount of improvement took place? Use ? = 0.01 and assume normality.

Before	14	15	13	13	11	15	17	17	15	15
After	18	22	13	23	17	18	20	25	22	16

(a) Find t. (Give your answer correct to two decimal places.)

Reference no: EM13609001

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