Answer the Question. -A Researcher Looks at the Percentage of People Having High

question 258

Multiple Choice

Answer the question.
-A researcher looks at the percentage of people having high blood pressure amongst those who exercise regularly and amongst those who do not exercise regularly.
She selects 300 people under 40, of whom 100 exercise regularly and 200 do not. Among those who
Exercise regularly the rate of high blood pressure is 10% and among those who do not exercise
Regularly it is 15%.
She then selects 300 people over 40, of whom 200 exercise regularly and 100 do not. Among those
Who exercise regularly the rate of high blood pressure is 30% and among those who do not exercise
Regularly it is 35%.
However when she combines both age groups she finds that among those who exercise regularly
The rate of high blood pressure is 23.3% and among those who do not exercise regularly it is 21.7%.
Explain how the apparent inconsistency in these results came about.

• A)Mistakes must have been made in measuring blood pressures.
• B)Those that do not exercise regularly must be receiving some other treatment to lower their blood pressure.
• C)The people in the "regular exercise" group probably started exercising because they have high blood pressure.
• D)The group that exercises regularly contains a greater proportion of older people than the group that does not exercise regularly. So when the age groups are combined, the "regular
• Exercise" group has a higher rate of high blood pressure.

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Definitions:

Inventory Methods

Techniques used to determine the cost of goods sold and ending inventory value, such as FIFO (First-In, First-Out), LIFO (Last-In, First-Out), and weighted average cost.

Days' Sales

A measure often used to evaluate the average time it takes for a company to convert its inventory into sales.

Lower-of-Cost-or-Market

An accounting principle that mandates inventory be recorded at the lower between its historical cost and current market value.

Balance Sheet

A financial statement that reports a company's assets, liabilities, and shareholders' equity at a specific point in time.