A fitness course claims that it can improve an individual's physical ability. 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 one minute, both before and after the course, was recorded. Ten individuals are randomly selected to participate in the course. The results are displayed in the following table. Can it be concluded, from the data, that participation in the physical fitness course resulted in significant improvement? Let d=(number of sit-ups that can be done after taking the course)−(number of sit-ups that can be done prior to taking the course)d=(number of sit-ups that can be done after taking the course)−(number of sit-ups that can be done prior to taking the course). Use a significance level of α=0.05α=0.05 for the test. Assume that the numbers of sit-ups are normally distributed for the population both before and after taking the fitness course. Sit-ups before 4242 4242 2323 3232 3030 4242 2525 4747 3535 3838 Sit-ups after 5757 4848 2929 4141 3636 5757 4040 5151 4141 4040 Copy Data Step 3 of 5 : Compute the value of the test statistic. Round your answer to three decimal places.
A fitness course claims that it can improve an individual's physical ability. 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 one minute, both before and after the course, was recorded. Ten individuals are randomly selected to participate in the course. The results are displayed in the following table. Can it be concluded, from the data, that participation in the physical fitness course resulted in significant improvement?
Let d=(number of sit-ups that can be done after taking the course)−(number of sit-ups that can be done prior to taking the course)d=(number of sit-ups that can be done after taking the course)−(number of sit-ups that can be done prior to taking the course). Use a significance level of α=0.05α=0.05 for the test. Assume that the numbers of sit-ups are
| Sit-ups before | 4242 | 4242 | 2323 | 3232 | 3030 | 4242 | 2525 | 4747 | 3535 | 3838 |
|---|---|---|---|---|---|---|---|---|---|---|
| Sit-ups after | 5757 | 4848 | 2929 | 4141 | 3636 | 5757 | 4040 | 5151 | 4141 | 4040 |
Copy Data
Compute the value of the test statistic. Round your answer to three decimal places.
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