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Question
The weight of a product is measured in pounds. A sample of 50 units is taken from a recent production. The sample yielded 
= 75 lb, and we know that 
2 = 100 lb. Calculate a 99 percent confidence interval for 
.
A. [71.36, 78.64]
B. [74.25, 75.75]
C. [38.58, 111.42]
D. [71.71, 78.29]
Answer
This answer is hidden. It contains 2 characters.
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