?In Exercises 1–3, refer to the accompanying screen display that results from the

Chapter 7, Problem 2

(choose chapter or problem)

In Exercises 1–3, refer to the accompanying screen display that results from the Verizon airport data speeds (Mbps) from Data Set 32 “Airport Data Speeds” in Appendix B. The confidence level of 95% was used.

Degrees of Freedom

a. What is the number of degrees of freedom that should be used for finding the critical value \(t_{\alpha / 2}\)

b. Find the critical value \(t_{\alpha / 2}\) corresponding to a 95% confidence level.

c. Give a brief general description of the number of degrees of freedom.

Text Transcription:

t_{\alpha / 2}