Question 1

The number of credits being taken by a sample of 13 full-time college students are listed below. Find the mean, median, and mode of the data, if possible. If any measure cannot be found or does not represent the center of the data, explain why. 7 7 10 10 7 6 6 6 8 6 6 6 9 . . . . . Find the mean. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The mean is. (Type an integer or decimal rounded to one decimal place as needed.) O B. The data set does not have a mean. Does the mean represent the center of the data? O A. The mean represents the center. O B. The mean does not represent the center because it is not a data value. O C. The mean does not represent the center because it is the largest data value. O D. The mean does not represent the center because it is the smallest data value. O E. The data set does not have a mean. Find the median. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The median is. (Type an integer or decimal rounded to one decimal place as needed.) O B. The data set does not have a median. Does the median represent the center of the data? O A. The median represents the center. O B. The median does not represent the center because it is the largest data value. O C. The median does not represent the center because it is the smallest data value.Find the mode. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The mode(s) is/are (Type an integer or decimal rounded to one decimal place as needed. Use a comma to separate answers as needed.) O B. The data set does not have a mode. Does (Do) the mode(s) represent the center of the data? O A. The mode(s) represent(s) the center. O B. The mode(s) does (do) not represent the center because it (one) is the largest data value. O C. The mode(s) does (do) not represent the center because it (they) is (are) not a data value. O D. The mode(s) does (do) not represent the center because it (one) is the smallest data value. O E. The data set does not have a mode.The grade point averages (GPA) for 12 randomly selected college students are shown on the right. Complete parts (a) through (c) below. 2.3 3.4 2.9 0 Assume the population is normally distributed. 1.7 0.5 4.0 2.4 1.1 3.7 0.4 2.2 3.1 (a) Find the sample mean. x=(Round to two decimal places as needed.) (b) Find the sample standard deviation. s= (Round to two decimal places as needed.) (c) Construct a 90% confidence interval for the population mean . A 90% confidence interval for the population mean is (]D) (Round to two decimal places as needed.)