TABLE 10-12 The Dean of a College Is Interested in the Proportion

question 166

Short Answer

TABLE 10-12
The dean of a college is interested in the proportion of graduates from his college who have a job offer on graduation day. He is particularly interested in seeing if there is a difference in this proportion for accounting and economics majors. In a random sample of 100 of each type of major at graduation, he found that 65 accounting majors and 52 economics majors
had job offers. If the accounting majors are designated as "Group 1" and the economics majors are designated as "Group 2," perform the appropriate hypothesis test using a level of significance of 0.05.
-Referring to Table 10-12, construct a 99% confidence interval estimate of the difference in proportion between accounting majors and economic majors who have a job offer on graduation day.

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Definitions:

Ex Post Facto Study

A research design that examines the effects of an independent variable on a dependent variable, where the study is conducted after the events have occurred.

Independent Variable

In research, a variable that is manipulated or changed to observe its effect on a dependent variable.

Longitudinal Studies

Research design that involves repeated observations of the same variables over short or long periods of time.

Risk Factor

An aspect or variable that increases the likelihood of developing a disease or injury.