Show your work to receive full credit. On Worksheet 1, you found the following sample statistics for the 39 statistics students that filled out the Introduction Survey at the beginning of our class: Sample mean = 24.85 years Sample standard deviation = 7.67 years A. Construct a 99% t-confidence interval for the population mean of statistics students' ages. Show what you enter into a calculator or your work if you work the problem using the formula. Round each value in the answer to a whole number of years. ANSWER: ( , ) B. In a complete sentence, write the meaning of the confidence interval in part A. You wish to estimate, with 95% confidence, the population proportion ofall statistics students who agree that community colleges should require New Student Orientation. Your estimate must be accurate within 3% of the population proportion. A. Find Zc. Round to 2 decimal places. Show your work or what you enter into a calculator. B. No preliminary estimate is available. Find the minimum sample size using the formula: 2 n = 3361' (E) Make sure to show what number you use for each variable in the formula. C. Assume a survey was conducted and the sample proportion of statistics students who agree that community colleges should require New Student Orientation is 73%. Find the minimum sample size using the formula: 2 n = 3361' (%) Make sure to show what number you use for each variable in the formula