1. Construct a 95% confidence interval to estimate the mean study hours per week for Wingate male students. Combining class surveys from last semester and this one, the sample mean was 6.60, the sample standard deviation was 4.05, and the sample size was 30. Interpret your confidence interval. By interpretation, I mean something like what is contained in the class notes, which is "we are X% certain that the true mean...". 2. Construct a 95% confidence interval to estimate the mean study hours per week for Wingate female students. Combining class surveys from last semester and this one, the sample mean was 9.23, the sample standard deviation was 7.35, and the sample size was 46. Interpret your confidence interval. 3. Is it possible that males and females have the same mean study hours per week? Explain your answer.