Which Form of Data Below Can Usually Be Obtained More

question 40

Multiple Choice

Which form of data below can usually be obtained more quickly and at a lower cost than the others?

• A)primary
• B)survey research
• C)secondary
• D)experimental research
• E)observational research

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Definitions:

Significance Level

The threshold below which a p-value is considered statistically significant, typically set at 0.05 or 5%.

Population Means

The average value of a particular characteristic for all the individuals within a population.

Pooled Variance

A method used to estimate the variance of two or more different samples that assume the underlying population variances are equal.

Sample Variances

A measure of variance calculated from a sample of a population, used to estimate the variance of the entire population.