# Confidence Interval for Mean: Baseball Data

Please see the attached spreadsheet:

With the data I need to answer the following:

A)Develop a 95 percent confidence interval for the mean number of home runs per team

B)develop a 95 percent confidence interval for the mean number f errors committed by each team

C) Develop a 9 percent confidence interval for the mean number of stolen bases for each team.

Possible Answers are:

a.82.62 and 103.98

b.93.68 and 103.99

c.149.7 and 175.23

https://brainmass.com/statistics/confidence-interval/confidence-interval-mean-baseball-data-354628

#### Solution Preview

Please see the attachments.

Statistics help needed - Confidence intervals

Please see the attached spreadsheet:

With the data I need to answer the following:

Answers

The 95% confidence interval is given by

A) Develop a 95 percent confidence interval for the mean number of home runs per team

Confidence Interval Estimate for the Mean

Data

Sample Standard Deviation 33.81960256

Sample Mean 162.6

Sample Size 30

Confidence Level 95%

Intermediate Calculations

Standard Error ...

#### Solution Summary

The solution provides step by step method for the calculation of confidence interval for variance. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.