Lucy Baker Is Analyzing Demographic Characteristics of Two Television Programs,American $\sigma$

question 36

Multiple Choice

Lucy Baker is analyzing demographic characteristics of two television programs,American Idol (population 1) and 60 Minutes (population 2) . Previous studies indicate no difference in the ages of the two audiences. (The mean age of each audience is the same.) Her staff randomly selected 100 people from each audience,and reported the following: ₁ = 43 years and ₂ = 45 years. Assume that $\sigma$ ₁ = 5 and $\sigma$ ₂ = 8. With a two-tail test and $\alpha$ = .05,the appropriate decision is _________________.

• A) do not reject the null hypothesis \(\mu\)₁ - \(\mu\)₂ = 0
• B) reject the null hypothesis \(\mu\)₁ - \(\mu\)₂ > 0
• C) reject the null hypothesis \(\mu\)₁ - \(\mu\)₂ = 0
• D) do not reject the null hypothesis\(\mu\)₁ - \(\mu\)₂ < 0
• E) do nothing

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Definitions:

Operating Loss

This occurs when a company's operating expenses exceed its gross profits, indicating that the business operations are not profitable.

Year 1

Indicates the first year of a specific period of time, operation, or accounting period, setting the baseline for subsequent years.

Net Operating Income

The profit a company makes from its core business operations, excluding deductions of interest and taxes.

Operating Loss

A loss incurred when a company's operating expenses exceed its gross profits or revenues, indicating that the core operations are not profitable.