Explore BrainMass

Explore BrainMass

    Statistics for the Behavioral Sciences

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

    Question: An elementary school principal would like to know how many hours the students spend watching TV each day. A sample of n = 25 children is selected, and a survey is sent to each child's parents. The results indicate an average of M = 3.1 hours per day with a standard deviation of s = 3.0.

    a. Make a point estimate of the mean number of hours of TV per day for the population of elementary school children.

    b. Make an interval estimate of the mean so that you are 90% confident that the true mean is in your interval.

    © BrainMass Inc. brainmass.com June 4, 2020, 12:01 am ad1c9bdddf
    https://brainmass.com/statistics/mean/314730

    Solution Preview

    (a) The point estimate is mu = 3.1 hours per day

    (b) The t- score for 90% confidence and 25 - 1 = 24 ...

    Solution Summary

    In a brief, about 90 word response, this solution provides an organized, step by step response which outlines how to compute the desired statistical measures. All calculations are included.

    $2.19

    ADVERTISEMENT