TABLE 10-4
a Real Estate Company Is Interested in Testing $\overline{X}$

question 95

Multiple Choice

TABLE 10-4
A real estate company is interested in testing whether, on average, families in Gotham have been living in their current homes for less time than families in Metropolis have. Assume that the two population variances are equal. A random sample of 100 families from Gotham and a random sample of 150 families in Metropolis yield the following data on length of residence in current homes.
Gotham: $\overline{X}$ _G = 35 months, s_G² = 900 $\quad$$\quad$ Metropolis: $\overline{X}$ _M = 50 months, s_M² = 1050
-Referring to Table 10-4, what is an unbiased point estimate for the mean of the sampling distribution of the difference between the 2 sample means?

• A) -15
• B) 0
• C) -10
• D) -22

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Definitions:

Psychoanalysis

A theory and therapeutic approach developed by Sigmund Freud that emphasizes exploring unconscious motives and conflicts as a path to understanding and treating psychological issues.

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A significant shift in psychology during the mid-20th century that emphasized the importance of mental processes and knowledge acquisition in understanding human behavior.

Scientific Methods

Systematic procedures for collecting and analyzing data, aimed at understanding phenomena and answering questions.

Non-Fiction

A genre of literature that deals with factual events, people, and information, rather than imaginative narratives.