Express the Null Hypothesis $\mathrm { H } _ { 0 }$

question 58

Multiple Choice

Express the null hypothesis $\mathrm { H } _ { 0 }$ and the alternative hypothesis $\mathrm { H } _ { 1 }$ in symbolic form. Use the correct symbol ( $\mu , \mathrm { p }$ , $\sigma$ ) for the indicated parameter.
-Carter Motor Company claims that its new sedan, the Libra, will average better than 30 miles per gallon in the city. Use $\mu$ , the true average mileage of the Libra.

• A) \(\begin{array}{l}
• \mathrm{H}_{0}: \mu=30 \\
• \mathrm{H}_{1}: \mu>30
• \end{array}\)
• B) \(\begin{array}{l}
• \mathrm{H}_{0}: \mu<30 \\
• \mathrm{H}_{1}: \mu \geq 30
• \end{array}\)
• C) \(\begin{array}{l}
• \mathrm{H}_{0}: \mu>30 \\
• \mathrm{H}_{1}: \mu \leq 30
• \end{array}\)
• D) \(\begin{array}{l}
• H_{0}: \mu=30 \\
• H_{1}: \mu<30
• \end{array}\)

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Definitions:

Net Income

Net income refers to the total earnings or profit a company generates, calculated by subtracting all expenses, taxes, and costs from its total revenue.

Unearned Revenue

The liability created by receiving revenue in advance.

Fees Earned

Income generated from providing services to clients or customers.

Dividends

A portion of a company's earnings distributed to shareholders as a return on their investment.