Discussion Post Based in Statistics Data
Question Description
Answering the following questions using the Data below:
mpg wt hpmpg 1.000000 -0.872112 -0.776205wt -0.872112 1.000000 0.659479hp -0.776205 0.659479 1.000000
- What is the slope coefficient for the weight variable? Is this coefficient significant at 5% level of significance (alpha=0.05)? (Hint: Check the P-value, , for weight in Python output. Recall that this is the individual t-test for the beta parameter.) See Step 5 in the Python script.
- What is the slope coefficient for the horsepower variable? Is this coefficient significant at 5% level of significance (alpha=0.05)? (Hint: Check the P-value, , for weight in Python output. Recall that this is the individual t-test for the beta parameter.) See Step 5 in the Python script.
- Last week, you performed an overall F-test. Why do you now need to perform individual t-tests? What are the differences in the interpretation of the two tests?
- What is the coefficient of determination of your multiple regression model from Module Six? Provide appropriate interpretation of this statistic.
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