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.

---

Definitions:

Professional Sales Call

A structured and purposeful communication initiated by a salesperson to a potential customer or client with the aim of making a sale.

Prospect's Needs

The specific requirements or desires of potential customers that a company aims to fulfill with its products or services.

Care About Customers

The practice of valuing and prioritizing the needs, satisfaction, and experiences of clients or patrons.

Customer Services

A range of services provided to assist customers in making cost effective and correct use of a product.