Do the same as problem 1, using the data of problem 3.
Problem 1
Find the mean, median, and mode(s) of the observations in problem 2.
Problem 2
The following data are numbers of passengers on flights of Delta Air Lines between San Francisco and Seattle over 33 days in April and early May.
128, 121, 134, 136, 136, 118, 123, 109, 120, 116, 125, 128, 121, 129, 130, 131, 127, 119, 114, 134, 110, 136, 134, 125, 128, 123, 128, 133, 132, 136, 134, 129, 132
Find the lower, middle, and upper quartiles of this data set. Also find the 10th, 15th, and 65th percentiles. What is the interquartile range?
Problem 3
The following data are annualized returns on a group of 15 stocks.
12.5, 13, 14.8, 11, 16.7, 9, 8.3, -1.2, 3.9, 15.5, 16.2, 18, 11.6, 10, 9.5
Find the median, the first and third quartiles, and the 55th and 85th percentiles for these data.