Solution Found!
Assume that the sample is taken from a large
Chapter 6, Problem 19E(choose chapter or problem)
Problem 19E
Assume that the sample is taken from a large population and the eorrection factor can be ignored.
Amount of Laundry Washed Each YearProcter & Gamble reported that an American family of four washes an average of 1 ton (2000 pounds) of clothes each year. If the standard deviation of the distribution is 187.5 pounds, find the probability that the mean of a randomly selected sample of 50 families of four will be between 1980 and 1990 pounds.
Questions & Answers
QUESTION:
Problem 19E
Assume that the sample is taken from a large population and the eorrection factor can be ignored.
Amount of Laundry Washed Each YearProcter & Gamble reported that an American family of four washes an average of 1 ton (2000 pounds) of clothes each year. If the standard deviation of the distribution is 187.5 pounds, find the probability that the mean of a randomly selected sample of 50 families of four will be between 1980 and 1990 pounds.
ANSWER:
Solution 19E
Step1 of 2:
From the given problem we have:
We need to find the probability that the families of four will be between 1980 and 1990 pounds.
Step2 of 2:
The families of four will be between 1980 and 1990 pounds is: