1. A researcher has obtained the number of hours worked per weekduring the semester for a sample of 10 students:
21, 33, 26, 16, 32, 20, 29, 20, 19, 20
Use the data set to compute the mean, the median, the mode, therange, the sample variance, the sample standard deviation, the 10thpercentile, The sum of the squared deviations of each value of Xfrom the mean. Briefly explain what information about the variableis provided by your answers for the mean, median, mode, andstandard deviation.
