In a recent study, scientists at UPenn selected a random sample of 63 subjects from a population of obese adults. From this sample, 33 were assigned to the Atkins diet, and 30 to conventional diet. Using significance level =0.05, does the study show that the Atkins diet is mor effective in that it produces more than 5 pounds of weight loss over the conventional diet? No. Mean Wt. loss in lbs Std. Dev. Atkins: 33 15.42 14.37 Conven. Diet: 30 7.00 12.36 1. H^0:? 2. H^1:? 3. Critical value(s):?
In a recent study, scientists at UPenn selected a random sample of 63 subjects from a population of obese adults. From this sample, 33 were assigned to the Atkins diet, and 30 to conventional diet. Using significance level =0.05, does the study show that the Atkins diet is mor effective in that it produces more than 5 pounds of weight loss over the conventional diet?
No. Mean Wt. loss in lbs Std. Dev.
Atkins: 33 15.42 14.37
Conven. Diet: 30 7.00 12.36
1. H^0:?
2. H^1:?
3. Critical value(s):?
4. Graph rejection regions with labelled critical value(s)
5. Test statistic: ? (State what test stat is being used (z,t, etc.) the formula being used, and what values are substituted into the formula).
6. P-value:?
7. State the conclusion of the test in the context of the problem (for example, not just "reject null," but what does it mean for this specific problem.
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