A Researcher Is Interested in Testing to Determine If the Mean

question 56

Multiple Choice

A researcher is interested in testing to determine if the mean price of a casual lunch is different in the city than it is in the suburbs. The null hypothesis is that there is no difference in the population means (i.e.the difference is zero) . The alternative hypothesis is that there is a difference (i.e.the difference is not equal to zero) . He randomly selects a sample of 9 lunch tickets from the city population resulting in a mean of $14.30 and a standard deviation of $3.40.He randomly selects a sample of 14 lunch tickets from the suburban population resulting in a mean of $11.80 and a standard deviation $2.90.He is using an alpha value of .10 to conduct this test.Assuming that the populations are normally distributed,the critical t value from the table is _______.

• A) 1.323
• B) 1.721
• C) 1.717
• D) 1.321
• E) 2.321

---

Definitions:

AMA's Code

The American Marketing Association's guidelines for ethical behavior and practice in the marketing profession.

Ethical Value

The importance placed on moral behaviors and actions that are considered right and good in a societal or individual context.

Distribution Decisions

Choices made regarding the channels and processes used to deliver a product from the manufacturer to the end consumer.

Supply Chain

The entire process of making and selling goods, including raw materials, manufacturing, distribution, and sale.