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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 90 percent confidence interval for 
.
A. [73.19, 76.81]
B. [51.74, 98.26]
C. [72.67, 77.33]
D. [67.50, 82.50]
Answer
This answer is hidden. It contains 2 characters.
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