A Survey Claims That 9 Out of 10 Doctors Recommend

question 97

Multiple Choice

A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches.To test this claim against the alternative that the actual proportion of doctors who recommend aspirin is less than 0.90,a random sample of 100 doctors was selected.Suppose you reject the null hypothesis.What conclusion can you reach?

• A)There is not sufficient evidence that the proportion of doctors who recommend aspirin is not less than 0.90.
• B)There is sufficient evidence that the proportion of doctors who recommend aspirin is not less than 0.90.
• C)There is not sufficient evidence that the proportion of doctors who recommend aspirin is less than 0.90.
• D)There is sufficient evidence that the proportion of doctors who recommend aspirin is less than 0.90.

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Definitions:

Long Run

A period in economics where all factors of production and costs are variable, allowing full adjustment to any change in economic conditions.

Economies of Scale

The cost advantages that enterprises obtain due to their scale of operation, leading to a reduced cost per unit of output.

Average Variable Cost Curve

A graphical representation that shows how the average variable cost of production varies with the level of output.

Long-run Average Total Cost

This refers to the per unit cost of production when all inputs can be adjusted, conceived for analyzing the scale of production without the constraint of fixed capital.