An English Instructor Gave a Final Exam and Found a Mean

question 70

Multiple Choice

An English instructor gave a final exam and found a mean score of 69 points and a standard deviation of 5.8 points.Assume that a Normal model can be applied.Draw and label the Normal model for the exam scores.Then find the interval for the central 68% of the scores.

• A) ;57.4 to 80.6 points
• B) ;63.2 to 74.8 points
• C) ;63.2 to 74.8 points
• D) ;57.4 to 69 points
• E) ;69 to 80.6 points

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Definitions:

Phillips Curve

An economic theory suggesting an inverse relationship between the level of unemployment and the rate of inflation within an economy.

Unemployment

The state of being jobless and actively seeking employment.

Inflation

The pace at which the universal cost levels of goods and services elevate, shrinking the value of money to buy.

Money Supply

The money supply is the total amount of monetary assets available in an economy at a specific time, including cash, coins, and balances held in checking and savings accounts.