Interpret your estimated coefficient on WEIGHT (That is, in words, what does the value tell you?) Does the sign of this coefficient match your expectations? What happened to the adjusted R2 when WEIGHT was added to this regression? What does this tell you?'ĥ months, 1 week ago 'Download the "cars xlsx' dataset from the course D2L shell: This dataset includes data on the 0-60 time (TIME), top speed (SPEED), curb weight (WEIGHT), and horsepower (HP) of 30 automobiles. Add a linear trendline to your scatter plot Does your scatter plot confirm your prediction in (a)?Įstimate the regression TIME = Bo + B,HP + €ĭs Interpret your estimated coefficient on HP (That is, in words, what does the value tell you?) Interpret the R? from your regression:Įstimate the regression TIME = Bo + BHP + BzWEIGHT + € Using Excel, create a scatter plot of TIME (dependent variable, Y-axis) and HP (independent variable X-axis). For full credit in addition to providing your answers below include your Excel spreadsheet with your scatter plot from a and regression output as part of your submission to the dropbox What is the expected effect of increasing horsepower on 0-60 time?ī. SOLVED: 'Download the "cars xlsx' dataset from the course D2L shell: This dataset includes data on the 0-60 time (TIME), top speed (SPEED), curb weight (WEIGHT), and horsepower (HP) of 30 automobiles.
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