2. For 50 airplanes that arrived late at an airport during a week, the time by which they were late was observed. In the following table, x denotes the time (in minutes) by which an airplane was late, and f denotes the number of airplanes. f O to less than 20 14 20 to less than 40 18 40 to less than 60 60 to less than 80 5 80 to less than 100 4 a. Find the mean, median, mode, variance, and standard deviation. b. Find the interquartile range.

Q.5. Find the median if the mean and mode are given as 35 and 30 respectively?

All of the following are descriptive statistics EXCEPT a. independent samples t-testb. medianc. variance d. frequency tables

A medical doctor is interested in determining whether mean body temperatures are different in the morning and at night. Five patients were recruited and their body temperatures were measured first at 8 AM and then again at 10 PM. The data is in the following table: Patient 1 2 4 Morning Night 98.0 97.6 97.2 97.0 98.0 97.0 98.8 97.6 97.7 98.8 For this matched pairs experiment, you should take the differences by calculating: Morning - Night. Also, you may use the fact that the sample standard deviation of 44/V5 the differences is 0.844 and that 0.844 0.3774. What is the test statistic for the test? Round your final answer to two decimals. Next Page Page 5 of 15 126 53 1. NOV 18