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Chapter 7: Q3 (page 327)

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.

Interpreting a Confidence Interval The results in the screen display are based on a 95%confidence level. Write a statement that correctly interprets the confidence interval.

Short Answer

Expert verified

There is 95% confidence that the true population mean value of the Verizon airport data speeds will lie between the values 13.046 Mbps and 22.15 Mbps.

Step by step solution

01

Given information

The 95% confidence interval estimate of the mean Verizon airport data speed is equal to (13.046 Mbps, 22.15 Mbps).

02

Step 2:Interpretation of the confidence interval

The correct interpretation of the given confidence interval is written below:

There is 95% confidence that the true population mean value of the Verizon airport data speeds will lie between the values 13.046 Mbps and 22.15 Mbps.

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