When a survey asked, "About how many hours per week do you spend sending and answering e-mail?" the 7 females in the survey sample of age at least 80 had the following responses Use the data to complete parts a and b. 0 0 3 4 5 7 13 a. Using technology, find the sample mean, standard deviation, and the standard error of the sample mean. The sample mean is (Round to two decimal places as needed.) The sample standard deviation is . (Round to two decimal places as needed.) The standard error of the sample mean is . (Round to two decimal places as needed.) b. Using technology, find and interpret a 90% confidence interval for the population mean. The 90% confidence interval for the population mean is (D) (Round to one decimal place as needed.) Interpret the confidence interval from the previous step. Choose the correct answer below. O A. There is 0.95% confidence that the population mean for the number of hours per week people spend sending and answering e-mail is between these two values. O B. There is 0.90% confidence that the population mean for the number of hours per week people spend sending and answering e-mail is between these two values. O C. Approximately 90% of the population send and answer e-mail between these two values in hours per week. O D. There is 90% confidence that the population mean for the number of hours per week people spend sending and answering e-mail is between these two values Click to select your answer(s) and then click Check Answer. All parts showing Clear Al