Data That Are Observed or Collected Directly from Respondents Are

question 9

Multiple Choice

Data that are observed or collected directly from respondents are called

• A) direct samples.
• B) secondary data.
• C) stratified data.
• D) primary data.
• E) firsthand information.

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Definitions:

Distributions

Refers to the way values are spread over a range for a dataset or variable in statistics.

Magnitude and Direction

Magnitude and direction describe the strength and the pathway (positive or negative) of a relationship or effect observed within a dataset.

Mann-Whitney U

A nonparametric test that compares differences between two independent groups on a single, continuous variable.

Wilcoxon Rank

The Wilcoxon Rank Sum Test or Wilcoxon Signed Rank Test is a non-parametric statistical hypothesis test used to compare two paired samples to assess whether their population mean ranks differ.