A Sample of 25 Observations Is Taken from an Infinite $\ge$

question 53

Multiple Choice

A sample of 25 observations is taken from an infinite population.The sampling distribution of Is

• A)not normal since n < 30
• B)approximately normal becauseis always normally distributed
• C)approximately normal if np \(\ge\) 5 and n(1-
• P) \(\ge\) 5
• D)approximately normal if np > 30 and n(1-
• P)> 30

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Definitions:

Factorial Research

A research design that involves two or more independent variables, also known as factors, and examines their interaction and main effects.

Single-Factor Research

An experimental design where the effect of a single independent variable on a dependent variable is assessed.

Independent Variable

A variable that is manipulated or categorized to observe its effect on a dependent variable in experimental research.

Interaction Effect

In statistics, a circumstance where the effect of one independent variable on a dependent variable is different at different levels of another independent variable.