A researcher reports,"the average patron (n = 22)in a local bar consumed more than twice the number of drinks (per day)on weekends (M = 5.4 drinks)compared to weekdays (M = 2.3 drinks)." Although not stated directly,how do we know that the patrons in this study constitute a sample,and not a population of patrons at this local bar?
A)We can't know for sure because this was not stated directly.
B)The notation for a sample mean was used.
C)The notation for sample size was used.
D)both B and C

Question

Quizplus · Accepted Answer

The use of the notation for a sample mean (M) and sample size (n) suggests that this study is based on a sample of patrons from the local bar, rather than the entire population of patrons at the bar.

A Researcher Reports,"the Average Patron (N = 22)in a Local