TABLE 10-3 a Real Estate Company Is Interested in Testing Whether the Whether

question 48

Multiple Choice

TABLE 10-3
A real estate company is interested in testing whether the mean time that families in Gotham have been living in their current homes is less than families in Metropolis. 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: G = 35 months, SG² = 900 Metropolis: M = 50 months, SM² = 1050
-Referring to Table 10-3, what is the test statistic for the difference between sample means?

• A) -8.75
• B) -3.69
• C) -2.33
• D) -1.96

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Definitions:

Hepaticophyta

A division of non-vascular plants known as liverworts, which are small, herbaceous plants found worldwide, playing a key role in the ecology of moist habitats.

Anthocerophyta

A phylum of non-vascular plants known as hornworts, characterized by a sporophyte that resembles a horn.

Ferns

A group of non-flowering vascular plants that reproduce via spores and have neither seeds nor flowers.

Bryophyta

A division of non-vascular land plants that are known as mosses, characterized by life-cycles with a dominant gametophyte stage.