Exhibit 13

question 19

Multiple Choice

Exhibit 13.2 A researcher with Ministry of Transportation is commissioned to study the drive times to work (one-way) for U.S.cities.The underlying hypothesis is that average commute times are different across cities.To test the hypothesis,the researcher randomly selects six people from each of the four cities and records their one-way commute times to work.Refer to the below data on one-way commute time (in minutes) to work.Note that the grand mean is 36.625. Refer to Exhibit 13.2.The competing hypotheses about the mean commute times are:

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Definitions:

Anal Stage

The second stage in Freud's psychosexual development theory, occurring from about 18 months to three years of age, where the focus of pleasure is on controlling bladder and bowel movements.

Reciprocal Determinism

In social-cognitive learning theories, the two-way interaction between aspects of the environment and aspects of the individual in the shaping of personality traits.

Heritability

A statistical estimate of the proportion of the total variance in some trait that is attributable to genetic differences among individuals within a group.

Factor Analysis

A statistical method for analyzing the intercorrelations among various measures or test scores; clusters of measures or scores that are highly correlated are assumed to measure the same underlying trait or ability (factor).