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:

Milk Production

The biological process by which mammals produce milk to feed their young, involving various hormonal controls.

Hormone

Chemical messenger, produced in one part of the organism, that controls the activity of other tissues or organs in that organism.

Hypothalamus

A region of the brain that controls many bodily functions, including hunger, thirst, temperature regulation, and the release of many hormones.

Anterior Pituitary

Portion of the pituitary gland that is controlled by the hypothalamus and produces six types of hormones, some of which control other endocrine glands.