In a study of the effectiveness of diet on weight loss, 20 people were randomly selected...

 

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In a study of the effectiveness of diet on weight loss, 20 people were randomly selected to participate in a diet program for 30 days. Test the claim that diet had no impact on weight loss. Usea = 0.02. Assume that the distribution is normally distributed. Answer the following questions. Partici ant Weight before ro ram in k 81 Weight before program (in kg) continued Weight 95 71 85 Weight after Co 83 93 71 86 ram in k Partici ant 85 78 75 84 88 102 86 75 83 100 89 70 75 91 102 66 95 after program (in 81 79 74 85 109 kg) continued a. Identify the claim and state the Ho and HI. b. Find the critical value. c. Calculate the test statistic. 63 92 92 76 91 d. Make a decision to reject or fail to reject the Ho. e. Interpret the decision in the context of the original claim. 65 79 79 (1 Mark) (1 Mark) (3 Marks) (1 Mark) (1 Mark) In a study of the effectiveness of diet on weight loss, 20 people were randomly selected to participate in a diet program for 30 days. Test the claim that diet had no impact on weight loss. Usea = 0.02. Assume that the distribution is normally distributed. Answer the following questions. Partici ant Weight before ro ram in k 81 Weight before program (in kg) continued Weight 95 71 85 Weight after Co 83 93 71 86 ram in k Partici ant 85 78 75 84 88 102 86 75 83 100 89 70 75 91 102 66 95 after program (in 81 79 74 85 109 kg) continued a. Identify the claim and state the Ho and HI. b. Find the critical value. c. Calculate the test statistic. 63 92 92 76 91 d. Make a decision to reject or fail to reject the Ho. e. Interpret the decision in the context of the original claim. 65 79 79 (1 Mark) (1 Mark) (3 Marks) (1 Mark) (1 Mark)