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Scenario 8.2 The undergraduate grade point average (GPA) for students admitted to the top graduate business schools...

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Statistics

Scenario 8.2

The undergraduate grade point average (GPA) for studentsadmitted to the top graduate business schools was 3.37. Assume thisestimate was based on a sample of 90 students admitted to the topschools. Using past years' data, the population standard deviationcan be assumed known as 0.30.  

1. Based on the information in Scenario 8.2, you are toconstruct a 95% confidence interval estimate of the meanundergraduate GPA for students admitted to the top graduatebusiness schools, that is
[ Lower limit , Upper limit ].

The Lower limit of this 95% confidenceinterval is equal to ? (to 2 decimals)?

2. Based on the information in Scenario 8.2, you are toconstruct a 95% confidence interval estimate of the meanundergraduate GPA for students admitted to the top graduatebusiness schools, that is
[ Lower limit , Upper limit ].

The Upper limit of this 95% confidenceinterval is equal to ? (to 2 decimals)?

Answer & Explanation Solved by verified expert
4.0 Ratings (435 Votes)
The formula for confidence interval estimation is M ZsMwhereM    See Answer
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