Explore BrainMass

Explore BrainMass

    What is the required sample size to estimate the mean IQ score of statistics students?

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

    An IQ test is designed so that the mean is 100 and the standard deviation is 12 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95% confidence that the sample mean is within 4 IQ points of the true mean. Assume that mean = 12 and determine the required sample size.

    n = _______ (round up to the nearest integer)

    © BrainMass Inc. brainmass.com June 4, 2020, 2:30 am ad1c9bdddf

    Solution Summary

    This solution provides step-by-step calculations for sample size, formatted in an attached Excel file.