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Summary statistics for the expected gpa

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A study on the factors? (other than credit? constraints) that would influence the college dropout decision was published. One factor of interest was expected GPA for a college student who studied 3 hours per day. In a representative sample of 303 college? students, the researchers reported the following summary statistics for the expected GPA of those who studied 3 hours per? day: x = 2.98?, s = 0.66. Complete parts a and b below.

a. Give an interval that will contain most? (at least 75?% to approximately 95?%) of the 303 GPAs.

Based on? the Empirical? Rule, an interval that will contain at least 75?% to approximately 95?% of the 303 GPAs is (........., .........). ?(Round to two decimal places as? needed.)

b. If you observe a GPA of 1.19?, is it likely that this college student studied 3 hours per? day? Explain.

Reference no: EM132851758

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