The Aluminum Association reports that the average American uses 56.8 pounds of aluminum in a year. A random sample of 51 households is monitored for one year to determine aluminum usage. If the population standard deviation of annual usage is 12.1 pounds, what is the probability that the sample mean will be each of the following? Appendix A Statistical Tables a. More than 58 pounds b. More than 57 pounds c. Between 56 and 58 pounds d. Less than 55 pounds e. Less than 48 pounds (Round the values of z to 2 decimal places. Round your answers to 4 decimal places.) a. enter the probability that the sample mean will be more than 58 pounds b. enter the probability that the sample mean will be more than 57 pounds c. enter the probability that the sample mean will be between 56 and 58 pounds d. enter the probability that the sample mean will be less than 55 pounds e. enter the probability that the sample mean will be less than 48 pounds       Save for Later     Attempts: unlimited Submit Answer

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The Aluminum Association reports that the average American uses 56.8 pounds of aluminum in a year. A random sample of 51 households is monitored for one year to determine aluminum usage. If the population standard deviation of annual usage is 12.1 pounds, what is the probability that the sample mean will be each of the following?
Appendix A Statistical Tables



a. More than 58 pounds
b. More than 57 pounds
c. Between 56 and 58 pounds
d. Less than 55 pounds
e. Less than 48 pounds

(Round the values of z to 2 decimal places. Round your answers to 4 decimal places.)

a. enter the probability that the sample mean will be more than 58 pounds

b. enter the probability that the sample mean will be more than 57 pounds

c. enter the probability that the sample mean will be between 56 and 58 pounds

d. enter the probability that the sample mean will be less than 55 pounds

e. enter the probability that the sample mean will be less than 48 pounds
 
 
 
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