I a Variable Whose Possible Outcomes Are Coded as a "1

question 123

Multiple Choice

i. A variable whose possible outcomes are coded as a "1" or a "0" is called a dummy variable.
ii. If the null hypothesis β4 = 0 is not rejected, then the independent variable X4 has no effect in
Predicting the dependent variable.
iii. A dummy variable is added to the regression equation to control for error.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Productivity Improvement

Strategies or activities aimed at increasing the efficiency and effectiveness of a production process or workforce to yield higher outputs.

Quality Improvement

A systematic approach to making changes in processes, systems, or services to enhance their effectiveness, efficiency, or safety, often based on specific methodologies like Lean or Six Sigma.

Group Meetings

Gatherings of individuals or teams, usually within a work or organizational context, meant to discuss issues, make decisions, or provide information and updates.

Labor-Management Partnership

Collaborative efforts between a company's management and its labor force to increase productivity and competitiveness through shared decision-making.