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 t-value with 19 degrees of freedom 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 20 degrees of freedom was used.
D) In construction of the confidence interval, a z-value was used.
A
You might also like to view...
Which of the following statements about the effects of a successful buyer-seller relationship on organizational structure and culture is true?
A) The organizational structure and management provide the necessary support for the salespeople and buyers in a partnering relationship B) Boundary-spanning employees who limit their operations to their duties within the organization, rather than working with clients and vendors C) Only the organizational structure of the seller needs to change for a successful partnering relationship to be implemented D) Local offices are not affected by partnerships created at headquarters E) It is only the sales force of a firm that is required to have an orientation to building partnerships
On July 7, Smithview Bank lent $430,000 to Andrews Retail Shop on a 90 day, 6% note. What is the maturity date of the note?
A) October 7 B) October 5 C) October 6 D) October 8