Twenty Randomly Selected Statistics Students Were Given 15 Multiple-Choice Questions

question 84

Multiple Choice

Twenty randomly selected statistics students were given 15 multiple-choice questions and 15 open-ended questions, all on the same material. The professor was interested in determining if students scored higher on the multiple-choice questions. This experiment is an example of ________________.

• A) A one-sample test of means
• B) A two-sample test of means
• C) A paired t-test
• D) A test of proportions

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Definitions:

Regression Analysis

A statistical technique used to model and analyze the relationship between a dependent variable and one or more independent variables.

Positively Skewed

A distribution shape where the right tail (higher values) is longer, indicating that the mean and median are greater than the mode.

Residuals Distribution

The distribution of difference values between observed and predicted values in a regression analysis.

F-value

A ratio used in statistical analysis to determine the significance of groups of variables in tests like ANOVA.