Question

The following temperatures show the (fictional) daily low measured at O'Hare airport every January 1st from the last 5 years: 17,22,13,11, and 14.

a) Compute the range and interquartile range.

b) Compute the sample variance and standard deviation.

c) A sample of air quality index readings for Milwaukee provided a sample mean of 11.5, a sample variance of 22.3, and a sample stand deviation of 4.72. What comparisons can you make between the low temperatures of Chicago and Milwaukee at New Years?

Answer 1