Lesson 8: Testing Significance of Slope and Overall Model (t-test and F-test)

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February 16, 2017 at 10:54 am  •  Posted in s17-busad360 by  •  1 Comment

Thu, Feb 16

Review:

  • Correlation
  • Linear Regression

Presentation:

Activity:

  • Calculate t-test of slope and F-test for Data Sets 1 and 2 (by hand)
    • Data set 1: {(3,5), (5,8), (8,11), (12,10)}
    • Data set 2: {(50,12), (60,15), (70,20), (80,30)}
  • Use this data set:  East Pueblo RE Sales 2014-2016 (from last time)
    • Find the necessary values from your Regression Output
    • Calculate t-test of slope and F-test for these data (by hand)
    • Compare to t-test and F-test values on Regression Output (there may be differences due to rounding error)
  • Submit calculations in class

One Comment

  1. Adam Pottorff / February 20, 2017 at 8:13 pm / Reply

    Thank you for the notes. I missed this lecture for family reasons. A video explaining the t-test and F-test would have been very helpful for me.

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