Explore BrainMass

Explore BrainMass

    Confidence Interval

    Not what you're looking for? Search our solutions OR ask your own Custom question.

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

    Assume a mean 0f 110 and a standard deviation of 10 in a population,

    a. What proportion of the population has levels greater than 115 and less than 105?

    b. If repeated sample of 30 were selected, what proportion of them would have less than 100?

    © BrainMass Inc. brainmass.com November 30, 2021, 1:48 am ad1c9bdddf

    Solution Preview

    Answer (a):
    Use the following formula in ...

    Solution Summary

    The solution provides excellent answer to the problem below about confidence intervals.