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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Definitions:

Average Propensity

The average tendency of an entity (such as a household) to spend a portion of income; can pertain to consumption or saving.

Disposable Income

Disposable income is the portion of an individual's or household's earnings left over for savings and expenditures after paying off income taxes.

Autonomous C

Autonomous consumption, the level of spending not influenced by current levels of income.

Induced C

Induced consumption, which refers to the spending by households that varies with income levels.