Answer to Question #219327 in Statistics and Probability for Vickie

Question

In the study of the effectiveness of a certain weight reduction exercises in weight reduction a group of 10 people engaged in the exercise is one month and show the following results show the judge whether the exercises are effective at at 0.05 level

Weight before 84 93 46 81 75 80 68 85 90 87

Weight after 83 90 47 79 77 83 65 82 95 93