Multiple Choice
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 σ2 = 100 lb.Calculate a 99 percent confidence interval for μ.
A) [71.36,78.64]
B) [74.25,75.75]
C) [38.58,111.42]
D) [71.71,78.29]
Correct Answer:
Verified
Correct Answer:
Verified
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