For the situations in Exercises 81–90, if possible, find the indicated two symmetric values of that contain the middle 95% of sample means. If not possible, explain why not.
89. The gas mileage for a 2014 Toyota Prius hybrid vehicle is not normally distributed, with miles per gallon and . Random samples of size are taken.
7.1.89
Not possible; variable not normally distributed and sample size less than 30