A Random Sample of Size 36 Is Taken from a Population

question 108

Multiple Choice

A random sample of size 36 is taken from a population with a mean of 50 and a standard deviation of 5.The sampling distribution of $\bar { X }$
____________________.

• A)Cannot be determined
• B)Is skewed to the left
• C)Is approximately normal
• D)Is skewed to the right

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Definitions:

Construct Validity

The extent to which a test measures what it claims to be measuring, indicating the accuracy of the construct it represents.

Operational Definitions

Observable operations, procedures, and measurements that are based on the independent and dependent variables.

Internal Validity

The extent to which a study can demonstrate a causal relationship between variables, minimizing the influence of external factors.

Independent Variable

A variable that is manipulated or changed in an experiment to observe its effects on a dependent variable.