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

question 33

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. The mean and the standard deviation, respectively, of the sampling distribution of the number of students who preferred going out early are

• A) 50 and 30.
• B) 60 and 30.
• C) 50 and 5.477.
• D) 60 and 5.477.

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Definitions:

Increasing Opportunity

Increasing opportunity involves the growth or expansion of choices and avenues through which individuals or organizations can achieve desired goals or outcomes.

Production Possibilities Curves

A graphical representation showing the maximum combination of goods and services that can be produced within a set timeframe with available resources.

Trading Possibilities Curves

A graphical representation depicting the range of goods and services that a country can produce and trade given its resources and technology.

Substitutability

The degree to which one product or service can be replaced by another to satisfy the same need or want.