Below are ACT composite scores from 20 randomly selected college students.
15 33 20 25 21 24 17 16 20 25 26 21 21 17 28 21 24 19 19 24
Enter the data into an excel spreadsheet and calculate the following descriptive statistics: mean, median, range, interquartile range, sample variance, sample standard deviation, estimated population variance, and estimated population standard deviation.
