A particular automobile costs an average of $21,755 in the Pacific Northwest. The standard deviation of prices is $650.
Posted: Wed May 11, 2022 4:08 pm
A particular automobile costs an average of $21,755 in the Pacific Northwest. The standard deviation of prices is $650. Suppose a random sample of 40 dealerships in Washington and Oregon is taken and their managers are asked what they charge for this automobile. What is the probability of getting a sample average cost of less than $21.500? Assume that only 120 dealerships in the entire Pacific Northwest sell this automobile.