Exhibit 10-9 Two Major Automobile Manufacturers Have Produced Compact Cars with the with the Same

question 119

Multiple Choice

Exhibit 10-9
Two major automobile manufacturers have produced compact cars with the same size engines. We are interested in determining whether or not there is a significant difference in the MPG (miles per gallon) of the two brands of automobiles. A random sample of eight cars from each manufacturer is selected, and eight drivers are selected to drive each automobile for a specified distance. The following data show the results of the test.
-Refer to Exhibit 10-9. At 90% confidence the null hypothesis

• A)should not be rejected
• B)should be rejected
• C)should be revised
• D)None of these alternatives is correct.

---

Definitions:

Net Profit Margin

Net profit margin is a financial ratio that shows what percentage of a company's revenues remain as net income after all expenses are deducted.

Earnings Per Share

A financial ratio that measures the portion of a company’s profit allocated to each outstanding share of common stock, indicating company profitability.

Time Management

Making effective use of available time.

Planning

The process of setting goals, developing strategies, and outlining tasks and schedules to achieve the desired goals.