A sample of 150 values is randomly selected from a population with mean, ?, equal to 43 and standard deviation, ?, equal to 19. (Give your answers correct to one decimal place.)
(a) Determine the interval (smallest value to largest value) within which you would expect 99.7% of such sample means to lie.
(b) What is the amount of deviation from the mean for a sample mean of 48.5?
(c) What is the maximum deviation you have allowed for in your answer to part (a)?