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 = 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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