Students in Statistics Classes Were Asked Whether They Preferred a 10-Minute

question 44

Multiple Choice

Students in statistics classes were asked whether they preferred a 10-minute break or to allow them go out of class 10 minutes early. In a sample of 150 students, 40 preferred a 10-minute break, 80 preferred going out 10 minutes early, and 30 had no preference. We want to determine if there is a difference in students' preferences. At the 1% level of significance, the null hypothesis should

• A) be rejected.
• B) not be rejected.
• C) be revised.
• D) not be tested.

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Definitions:

Levels

Distinct values that a categorical variable can have. In experimental design, it also refers to the treatments or conditions to which subjects are assigned.

Independent Variable

A factor or condition that is manipulated by the researcher to observe its effect on the dependent variable in an experiment.

Combinations

The selection of items from a larger set such that the order of selection does not matter.

Levels

Refers to the different values or categories of a variable in a study or analysis.