From a Random Sample of 300 Students at a State

question 19

Multiple Choice

From a random sample of 300 students at a state university, you find the average number of hours of study time each week is 30 with a standard deviation of 5. In this research situation,

• A) the sample is too small
• B) the population consists of the 300 students surveyed
• C) the sample is the 300 students surveyed
• D) the parameter is 30

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Definitions:

Population Standard Deviation

A measure of the variability or dispersion of a population dataset, representing the square root of the variance.

Sample Size

The number of observations or data points collected in a subset of a population for the purpose of statistical analysis.

Employee Retention

Strategies or practices employed by organizations to prevent valuable employees from leaving their jobs.

Sampling Error

The difference between the value of a sample statistic (such as the sample mean, sample standard deviation, or sample proportion) and the value of the corresponding population parameter (population mean, population standard deviation, or population proportion) that occurs because a random sample is used to estimate the population parameter.