TABLE 4-2
An alcohol awareness task force at a Big-Ten university sampled 200 students after the midterm to ask them whether they went bar hopping the weekend before the midterm or spent the weekend studying, and whether they did well or poorly on the midterm. The following result was obtained.
-Referring to Table 4-2, the events "Did Well on Midterm" and "Studying for Exam" are
Definitions:
Sampling Distribution
The probability distribution of a given statistic based on a random sample, essential in estimating the sampling variability.
Sample Mean
The average value of a sample, used as an estimate of the population mean.
Infinite Population
A hypothetical concept referring to a population of unlimited size, used as an assumption in certain statistical models.
Standard Error
A measure of the statistical accuracy of an estimate.
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