The Distribution of a Sample of the Outside Diameters of PVC

question 13

Multiple Choice

The distribution of a sample of the outside diameters of PVC gas pipes approximates a symmetrical, bell-shaped distribution. The arithmetic mean is 14.0 cm, and the standard deviation is 0.1 cm. About 68 percent of the outside diameters lie between what two amounts?

• A) 13.5 and 14.5 cm
• B) 13.0 and 15.0 cm
• C) 13.9 and 14.1 cm
• D) 13.8 and 14.2 cm

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Definitions:

Inflationary Premium

The part of the nominal interest rate that represents compensation to the lender for the expected loss of purchasing power due to inflation.

Money Rate

The interest rate or the cost of borrowing money, often influenced by central banks.

Real Rate

The interest rate that has been adjusted for inflation, indicating the real yield on investments or savings.

Inflation Rate

The pace at which prices for general goods and services escalate, resulting in diminished purchasing capacity.