Explore BrainMass

Explore BrainMass

    Correlation and Regression Computation

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

    A consumer buying cooperative tested the effective heating area of 20 different electric
    space heaters with different wattages. Here are the results.

    Heater Wattage Area
    1 1,500 205
    2 750 70
    3 1,500 199
    4 1,250 151
    5 1,250 181
    6 1,250 217
    7 1,000 94
    8 2,000 298
    9 1,000 135
    10 1,500 211
    11 1,250 116
    12 500 72
    13 500 82
    14 1,500 206
    15 2,000 245
    16 1,500 219
    17 750 63
    18 1,500 200
    19 1,250 151
    20 500 44

    a. Compute the correlation between the wattage and heating area. Is there a direct or an indirect relationship?
    b. Develop a scatter diagram for these two variables.
    c. Develop the regression equation for effective heating based on wattage.

    © BrainMass Inc. brainmass.com June 3, 2020, 10:34 pm ad1c9bdddf
    https://brainmass.com/statistics/regression-analysis/statistics-238132

    Solution Summary

    This solution shows step-by-step calculations to determine the correlation between wattage and heating area as well as the regression equation for the relationship. A scatter diagram of the correlation is also included.

    $2.19

    ADVERTISEMENT