The mean and standard deviation of a sample's distribution of scores on a measure can be used to estimate
A) a range of values that is likely to include the true population mean.
B) the probability that the sample and population means truly differ.
C) the probable margin of error in an individual's obtained score on a measure used in the study.
D) statistical power.

Question

Quizplus · Accepted Answer

The mean and standard deviation of a sample are used to estimate a range of values (confidence interval) that is likely to include the true population mean. This is a fundamental concept in inferential statistics, where sample statistics are used to make inferences about the population parameters.

The Mean and Standard Deviation of a Sample's Distribution of Scores