An Educator Wanted to Look at the Study Habits of University

question 96

Multiple Choice

An educator wanted to look at the study habits of university students. As part of the research, data was collected for three variables - the amount of time (in hours per week) spent studying, the amount of time (in hours per week) spent playing video games and the GPA - for a sample of 20 male university students. As part of the research, a 95% confidence interval for the average GPA of all male university students was calculated to be: (2.95, 3.10) . Which of the following statements is true?

• A) In construction of the confidence interval, a z-value was used.
• B) In construction of the confidence interval, a z-value with 20 degrees of freedom was used.
• C) In construction of the confidence interval, a t-value with 19 degrees of freedom was used.
• D) In construction of the confidence interval, a t-value with 20 degrees of freedom was used.

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Definitions:

Strategic Constituencies

Groups or stakeholders whose support is essential for an organization's survival and success, such as customers, employees, suppliers, and investors.

Value Creation

The process by which goods or services are provided that offer customers better value than those of competitors, either through lower price or by providing greater benefits and service that justifies higher prices.

Competitive Advantage

Achieving a superior position in the marketplace through distinctive products, services, or processes that competitors find difficult to replicate.

Manufacturing Costs

Expenses directly related to the production of goods, including raw materials, labor, and overhead costs involved in the manufacturing process.