Which Procedure Refers to a Small-Scale Study in Which the Results

question 63

Multiple Choice

Which procedure refers to a small-scale study in which the results are only preliminary and intended only to assist in design of a subsequent study?

• A)pretest
• B)focus group
• C)primary test
• D)preliminary study

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Definitions:

Independent Random Samples

Samples selected from a population in such a way that each individual sample is chosen randomly and independently of each other.

Population Means

The average value of a numerical characteristic in a population, representing the central tendency of the population.

Confidence Interval

A confidence interval is a range of values, derived from sample statistics, used to estimate the true value of a population parameter with a certain degree of confidence.

Normally Distributed

Describes a type of continuous probability distribution for a real-valued random variable where the data forms a symmetric, bell-shaped curve about the mean.