TABLE 12-8 The Director of Transportation of a Large Company Is Interested

question 171

Multiple Choice

TABLE 12-8
The director of transportation of a large company is interested in the usage of the company's van pool program. She surveyed 129 of her employees on the usage of the program before and after a campaign to convince her employees to use the service and obtained the following:
She will use this information to perform test using a level of significance of 0.05.
-Referring to Table 12-8, the director now wants to know if the proportion of employees who use the service before the campaign and the proportion of employees who use the service after the campaign are the same. What should be her conclusion?

• A) There is sufficient evidence that the proportion of employees who use the service before the campaign is the same as the proportion of employees who use the service after the campaign.
• B) There is insufficient evidence that the proportion of employees who use the service before the campaign is the same as the proportion of employees who use the service after the campaign.
• C) There is sufficient evidence that the proportion of employees who use the service before the campaign is not the same as the proportion of employees who use the service after the campaign.
• D) There is insufficient evidence that the proportion of employees who use the service before the campaign is not the same as the proportion of employees who use the service after the campaign.

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Definitions:

Real Interest Income

The interest income adjusted for inflation, representing the true purchasing power of interest earnings over time.

Nominal Interest Income

The amount of money earned from interest before adjusting for inflation; it does not account for the purchasing power of the interest income.

Monetary Policy

Monetary policy involves the management of a nation's money supply and interest rates by its central bank to control inflation, manage employment, and stabilize the currency.

Short Run

A period in economics where at least one input is fixed and cannot be changed, limiting adjustments in production.