Multiple Choice
A previous study of nickels showed that the the standard deviation of the weight of nickels is 150 milligrams. A coin counter manufacturer wishes to find the 99% confidence interval for the average
Weight of a nickel. How many nickels does he need to weigh to be accurate within 15 milligrams?
A) 100
B) 666
C) 955
D) 542
Correct Answer:
Verified
Correct Answer:
Verified
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