Since the 1970s,__________

question 111

Multiple Choice

Since the 1970s,__________.

• A) the time U.S. college students spend socializing has declined by half
• B) institutions redefined college students as consumers
• C) grade inflation at U.S. colleges decreased dramatically
• D) academic demands and the time U.S. college students spend studying increased

---

Definitions:

Random Sample

A sample in which each member of a population has an equal chance of being selected, ensuring the representativeness of the sample.

Statistics Canada

The national statistical office of Canada, which provides essential information on Canada's economy, society, and environment.

Alpha

A parameter in statistical hypothesis testing representing the probability of rejecting the null hypothesis when it is actually true (Type I error).

Power of the Test

The probability that a statistical test will reject a false null hypothesis, indicating the test's ability to detect an effect if there is one.