Explore BrainMass

Explore BrainMass

    Linear Regression: Developing Equations

    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!

    Please help with the following problem.

    The following data shows the retail price for 12 randomly selected laptop computers along with their
    corresponding processor speeds.

    computers speed price $
    1 2 2,689
    2 1.6 1,229
    3 1.6 1,419
    4 1.8 2,589
    5 2 2,849
    6 1.2 1,349
    7 2 2,929
    8 1.6 1,849
    9 2 2,819
    10 1.6 2,669
    11 1 1,249
    12 1.4 1,159

    a. Develop a linear equation that can be used to describe how the price depends on the
    processor speed.
    b. Based on your regression equation, is there one machine that seems particularly over- or
    c. Compute the correlation coefficient between the two variables. At the .05 significance
    level conduct a test of hypothesis to determine if the population correlation could be
    greater than zero.
    d. Draw a box plot reflecting how the price depends on the processor speed.

    © BrainMass Inc. brainmass.com December 24, 2021, 6:32 pm ad1c9bdddf

    Solution Summary

    The following posting helps with a problem about linear regression. This solution develops a linear regression equation to describe price given a processor speed and computes the correlation coefficient