Question

09 A powder diet is tested on 49 people, and a liquid diet is tested on 36 different people of interest is whether the liquid diet yields a higher mean weight loss than the powder diet. The powder diet group had a mean weight loss of 42 pounds with a standard deviation of 12 pounds. The liquid diet group had a mean weight loss of 45 pounds with a standard deviation of 14 pounds. Use the two-sample t-methods to construct a 95% confidence interval for difference in population means (liquid powder). Round your final answer to 1 decimal place. pounds, pounds) A 95% confidence is