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Graphing Calculator Example

 

7.2 Large-Sample Confidence Intervals for a Population Mean

Concept 1
Concept 2
Problem 1
Problem 2
Now You Try It!
Problem 3

For problems 1 and 2, use the provided information to construct a confidence interval to estimate the population mean.

1. Salaries of college statistics professors at Florida public universities: Confidence level = 95%, n =36, sample mean = $85,113, and standard deviation = $11,024.

2. Speeds of drivers ticketed in a 65mph zone: Confidence level = 98%, n = 31, sample mean = 81, and standard deviation = 3.4.
 

 

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