Question: In your initial post, address the following items: Is at least one of the two variables ( weight and horsepower ) significant in the model?
In your initial post, address the following items:
Is at least one of the two variables weight and horsepower significant in the model? Run the overall Ftest and provide your interpretation at level of significance. See Step in the Python script. Include the following in your analysis:
Define the null and alternative hypothesis in mathematical terms and in words.
Report the level of significance.
Include the test statistic and the Pvalue. Hint: FStatistic and Prob FStatistic in the output
Provide your conclusion and interpretation of the test. Should the null hypothesis be rejected? Why or why not?
What is the slope coefficient for the weight variable? Is this coefficient significant at level of significance alphaHint: Check the Pvalue, P is greater than the absolute value of t for weight in Python output. Recall that this is the individual ttest for the beta parameter. See Step in the Python script.
What is the slope coefficient for the horsepower variable? Is this coefficient significant at level of significance alphaHint: Check the Pvalue, P is greater than the absolute value of t for horsepower in Python output. Recall that this is the individual ttest for the beta parameter. See Step in the Python script.
What is the purpose of performing individual ttests after carrying out the overall Ftest? 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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