Mathematics, 12.12.2020 17:10 astultz309459
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 12.3 pounds, what is the probability that the sample mean will be more than 59 pounds .
a) 0.1003
b) 0.3997
c) 0.6003
d) 0.8997
e) 0.0003
Answers: 3
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