# Question

Discuss why you would or would not expect each of the following variables to be normally distributed.

a. Time for households to complete the U.S. Census short form.

b. Size of automobile collision damage claims.

c. Diameters of randomly chosen circulated quarters.

d. Weight of contents of 16-ounce boxes of elbow macaroni.

a. Time for households to complete the U.S. Census short form.

b. Size of automobile collision damage claims.

c. Diameters of randomly chosen circulated quarters.

d. Weight of contents of 16-ounce boxes of elbow macaroni.

## Answer to relevant Questions

Scores on a certain accounting exam were normally distributed with a mean of 75 and a standard deviation of 7. Find the percentile for each individual using Excel's =NORM.S.DIST function. (a) Bob's score was 82; (b) ...The length of a Colorado brook trout is normally distributed. (a) What is the probability that a brook trout's length exceeds the mean? (b) Exceeds the mean by at least 1 standard deviation? (c) Exceeds the mean by at least ...Shower temperature at the Oxnard Health Club showers is regulated automatically. The heater kicks in when the temperature falls to 998F and shuts off when the temperature reaches 1078F. Water temperature then falls slowly ...John can take either of two routes (A or B) to LAX airport. At midday on a typical Wednesday the travel time on either route is normally distributed with parameters μA = 54 minutes, σA = 6 minutes, μB = 60 minutes, and ...Find the standard error of the mean for each sampling situation (assuming a normal population). What happens to the standard error each time you quadruple the sample size? a. σ = 32, n = 4 b. σ = 32, n = 16 c. σ = 32, n = ...Post your question

0