In Constructing a 95% Confidence Interval Estimate for the Difference

question 107

Multiple Choice

In constructing a 95% confidence interval estimate for the difference between the means of two normally distributed populations, where the unknown population variances are assumed not to be equal, summary statistics computed from two independent samples are: , , , , , and . The upper confidence limit is:

• A) 18.78
• B) 6.78
• C) 5.76
• D) 77.3
• E) 89.3

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Inventory Shrinkage

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