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The Weight of a Product Is Measured in Pounds

Question 42

Multiple Choice

The weight of a product is measured in pounds.A sample of 50 units is taken from a batch.The sample yielded The weight of a product is measured in pounds.A sample of 50 units is taken from a batch.The sample yielded = 75 lbs. ,and we know that σ<sup>2</sup> = 100 lbs.Calculate a 90 percent confidence interval for μ. A) [73.19,76.81] B) [51.74,98.26] C) [72.67,77.33] D) [67.50,82.50] = 75 lbs. ,and we know that σ2 = 100 lbs.Calculate a 90 percent confidence interval for μ.


A) [73.19,76.81]
B) [51.74,98.26]
C) [72.67,77.33]
D) [67.50,82.50]

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