SCENARIO 8-17 A Wealthy Real Estate Investor Wants to Decide Whether It

question 128

Short Answer

SCENARIO 8-17
A wealthy real estate investor wants to decide whether it is a good investment to build a high-end shopping complex in a suburban county in Chicago.His main concern is the total market value of the 3,605 houses in the suburban county.He commissioned a statistical consulting group to take a sample of 200 houses and obtained a sample mean market price of $225,000 and a sample standard deviation of $38,700.The consulting group also found out that the mean differences between market prices and appraised prices was $125,000 with a standard deviation of $3,400.Also,the proportion of houses in the sample that are appraised for higher than the market prices is 0.24.
-Referring to Scenario 8-17,what will be the 90% confidence interval for the mean market price of the houses in the suburban county constructed by the consulting group?

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Definitions:

Thoracic Cavity

A cavity in the body housing the lungs, heart, and other components of the respiratory and circulatory systems; located within the chest.

Homeostasis

The ability of an organism or environment to maintain a state of internal balance and physical well-being in spite of changes or outside influences.

Negative Feedback

A regulatory mechanism in which a change in a system triggers an action that reverses that change, maintaining system stability.

Internal Organs

Organs located within the main cavities of the body, such as the heart, liver, and kidneys, which perform essential functions necessary for survival.