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The director of a Masters of Public Administration Program is preparing a brochure to promote the program....

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Basic Math

The director of a Masters of Public Administration Program ispreparing a brochure to promote the

program. She would like to include in the brochure the averagegrade point average (GPA) of first-

year students in the program, but since time is pressing shedecides to estimate this figure with a

sample of ten students (GPAs are normally distributed). The GPAsare listed below. What is the best

estimate of the average GPA for all first-year students? With95% confidence, can the director

conclude the average GPAs for first-year students is a B orbetter (3.0 on a 4.0 scale)?

2.8

3.6

3.4

2.5

2.2

2.6

4.0

3.1

2.7

3.5

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