A Researcher Wishes to Determine the Difference in Two Population

question 68

Multiple Choice

A researcher wishes to determine the difference in two population means.To do this, she randomly samples 9 items from each population and computes a 90% confidence interval.The sample from the first population produces a mean of 780 with a standard deviation of 240.The sample from the second population produces a mean of 890 with a standard deviation of 280.Assume that the values are normally distributed in each population.The point estimate for the difference in the means of these two populations is _______.

• A)-110
• B)40
• C)-40
• D)0
• E)240

---

Definitions:

Baby Boomers

A demographic group comprising individuals born between 1946 and 1964, characterized by significant population growth following World War II.

Organization Design

The process of structuring an organization's roles, responsibilities, and relationships to effectively achieve its goals.

Strategic Choice

Decision-making processes that consider the long-term goals and direction of an organization.

Authority Relationships

The structured interactions and power dynamics between individuals in positions of command and those who report to them within an organization.