Asked by taz
A machine on an assembly line fills cans with quantities of food that are normally distributed with a standard deviation of 0.057 pounds. The mean quantity filled is estimated using a sample of 100 cans. What is the difference between the upper and lower limits of the 95% confidence interval for the mean?
A.0.0057 lb.
B.0.011 lb.
C.0.022 lb.
D.0.11 lb.
E.0.22 lb.
A.0.0057 lb.
B.0.011 lb.
C.0.022 lb.
D.0.11 lb.
E.0.22 lb.
Answers
Answered by
drwls
Since 95% of the samples will be within 2 sigma (standard deviations) of the mean, that range will be 0.114 lb wide.
The answer is D
The answer is D
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