Explore BrainMass

Findind confidence interval for true mean

Find the confidence interval for the true mean assuming that each sample is from a normal population and we know the standard deviation:
The given data is:
Xbar = 14
Standard deviation = 4
Use the 95% confidence level.

Solution Preview

Please refer to attached document for complete solution. Work done with the help of equation writer may not print here.


Since samples are from normal population, samples mean will follow a normal ...

Solution Summary

Solution describes the steps for finding out the confidence interval for true mean from given data.