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

question 63

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, suppose α = 0.10. Which of the following represents the correct conclusion?

• A) There is not enough evidence that the mean amount of time families in Gotham have been living in their current homes is less than families in Metropolis.
• B) There is enough evidence that the mean amount of time families in Gotham have been living in their current homes is less than families in Metropolis.
• C) There is not enough evidence that the mean amount of time families in Gotham have been living in their current homes is not less than families in Metropolis.
• D) There is enough evidence that the mean amount of time families in Gotham have been living in their current homes is not less than families in Metropolis.

---

Definitions:

Interchangeable Parts

Components designed to be exactly similar so they can be easily replaced or assembled without customization.

Manufacturing

The process of producing goods by transforming raw materials into finished products, using labor, machinery, and chemical processing.

Scientific Management

A theory of management that analyzes and synthesizes workflows to improve economic efficiency, especially labor productivity, pioneered by Frederick Taylor.

Scientific Management

A management theory focusing on improving efficiency and labor productivity through scientific studies of tasks.