Discussion:
Q: Is the Diet Practical? When 40 people used the Weight Watchers Diet for one year, their mean weight loss was 3.0 lb and the standard deviation was 4.9 lb. Use a 0.01 significance level to test the claim that the mean weight loss is greater than 0 lb. Based on these results, does the diet appear to be effective? Does the diet appear to have practical significance?
H0:
H1:
Test Statistic
P-value:
Conclusion (i.e. decision) about H0 [reject/fail to reject]
Final Conclusion on the claim