Explore BrainMass
Share

Explore BrainMass

    Confidence interval for mean

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    a random sample of 50 engineers of a large technology company that the sample mean is 34.4 year. assume that the population standard deviation is 8 years. construct and explain a 98% confidence interval estimate of the average age of all engineers employed by the company.

    © BrainMass Inc. brainmass.com October 10, 2019, 3:54 am ad1c9bdddf
    https://brainmass.com/statistics/confidence-interval/confidence-interval-for-mean-441218

    Solution Summary

    Step by step method for computing confidence interval for mean is given in the answer.

    $2.19