In a Right-Tailed Test Comparing Two Proportions, the Test Statistic

question 4

Multiple Choice

In a right-tailed test comparing two proportions, the test statistic was z_calc = +1.81. The p-value is:

• A).9649
• B).0351
• C).4649
• D)Must know n to answer.

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Definitions:

One-group Pretest-posttest Design

An experimental design where a single group of participants is tested before and after an intervention to assess its effect.

Extreme Scores

Extreme scores refer to the most unusually high or low values in a data set, which can significantly influence statistical analyses and interpretations.

Selection Differences

Disparities between groups in an experimental study that can affect the outcome, often resulting from non-random assignment.

Testing Effects

The impact that pre-testing may have on the subjects' performance in subsequent assessments.