a) what is the slope of the regression equation? b) what is the value of the cor

Question

a) what is the slope of the regression equation? b) what is the value of the correlation coefficient? c) A 4 year old car is delivered to his lit with 160000 miles. Manually enter these values in the data table above and rerun the regression analysis. What is the value of the slope? d) Including the additional car, what is the value of the correlation coefficient? A used car dealer wants to develop a regression equation that determines mileage as a function of the age of a car an years. He collects the data shown below for the 12 cars he has on Assignment 10q4 data a) What is the slope of the regression equation? Give your answer to two decimal places. b) What is the value of the correlation coeffickent? Give your answer to two decimal places. c) A 4 year old car is delivered to his lot with 160000 miles. Manually enter these values in the data table above and rerun the regression analysis. What is the value of the slope? Give your answer to two decimal places. Including the additional car, what is the value of the correlation coefficient? Give your answer to two decimal places. e) Did the additional car strengthen or weaken the linear relationship between age and mileage? It strengthened the linear relationship. It weakened the linear relationship Can not be determined. Submit Answer Save Progress A No an Un N

Explanation / Answer

Dear student,

As per Chegg guidelines only the first four subparts are answered.

1,

The slope of the regression equation is 11742.99

2,

The correlation coefficient is 0.92911 i.e. 0.93

3, The slope after change is 4703.517

4,

The correlation coefficient after change is 0.399134 i.e. 0.40

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