An Educator Wanted to Look at the Study Habits of University

question 84

Multiple Choice

An educator wanted to look at the study habits of university students. As part of the research, data was collected for three variables - the amount of time (in hours per week) spent studying, the amount of time (in hours per week) spent playing video games and the GPA - for a sample of 20 male university students. As part of the research, a 95% confidence interval for the average GPA of all male university students was calculated to be: (2.95, 3.10) . What assumption is necessary for the confidence interval analysis to work properly?

• A) The Central Limit theorem guarantees that no assumptions about the population are necessary.
• B) The population that we are sampling from needs to be a t-distribution with n-1 degrees of freedom.
• C) The sampling distribution of the sample mean needs to be approximately normally distributed.
• D) The population that we are sampling from needs to be approximately normally distributed.

---

Definitions:

Authorized Agent

An individual or entity that has been given legal authorization to act on behalf of another person or entity in conducting business or legal affairs.

Drawer

The party that initiates a draft (writes a check, for example), thereby ordering the drawee to pay.

Commercial Money Market

A segment of the financial market where commercial banks, businesses, and government agencies raise funds by issuing short-term debt.

Short-Term Borrowing

Refers to loans or debt obligations that are due for repayment within a short period, typically less than one year.