A Researcher with the Ministry of Transportation Is Commissioned to Study

question 18

Multiple Choice

A researcher with the Ministry of Transportation is commissioned to study the drive times to work (one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and records their one-way commute times to work. Refer to the below data on one-way commute times (in minutes) to work. Note that the grand mean is 36.625. Based on the sample standard deviation, the one-way ANOVA assumption that is likely not met is ________.

• A) the populations are normally distributed.
• B) the population standard deviations are assumed to be equal.
• C) the samples are independent.
• D) None of these choices is correct.

---

Definitions:

Marketable Securities

Financial instruments that can be easily converted into cash. They include stocks, bonds, and Treasury bills among others.

Current Liabilities

Financial responsibilities that must be settled within a period of one year.

Noncurrent Assets

Long-term assets that are not expected to be converted into cash within a year, such as property, plant, and equipment.

Stockholders' Equity

The ownership interest of shareholders in a corporation, calculated as total assets minus total liabilities.