Explore BrainMass

Explore BrainMass

    Regression Analysis

    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!

    Tem Rousos, president of Rousos Ford, believes there is a relationship between the number of new cars sold and the number of sales people on duty. To investigate he selects a sample of eight weeks and determines the number of new cars sold and the number of sales people on duty for that week.

    Week Sales staff Cars sold
    1 5 53
    2 5 47
    3 7 48
    4 4 50
    5 10 58
    6 12 62
    7 3 45
    8 11 60

    a. Plot these data in a scatter diagram.
    b. Determine the coefficient of correlation.
    c. Determine the coefficient of determination. Comment on the strength of the association between the two variables.

    © BrainMass Inc. brainmass.com March 4, 2021, 9:21 pm ad1c9bdddf
    https://brainmass.com/statistics/regression-analysis/regression-analysis-237104

    Solution Preview

    Week Sales staff Cars sold
    1 5 53
    2 5 47
    3 7 48
    4 4 50
    5 10 58
    6 12 62
    7 3 45
    8 11 60

    a. Plot these data in a scatter diagram. ...

    $2.49

    ADVERTISEMENT