A Fitted Regression for an Exam in Prof

question 124

Multiple Choice

A fitted regression for an exam in Prof.Hardtack's class showed Score = 20 + 7 Study,where Score is the student's exam score and Study is the student's study hours.The regression yielded R2 = 0.50 and SE = 8.Bob studied 9 hours.The quick 95 percent prediction interval for Bob's grade is approximately

• A)69 to 97
• B)75 to 91
• C)67 to 99
• D)76 to 90

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