Answered: The weight of a car can influence the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The weight of a car can influence the mileage that the car can obtain. A random sample of 17 cars was taken and the weight (in pounds) and mileage (in mpg) were recorded and are in the table below.

X, weight	Y, mileage
4000	23.6
4000	23.4
2500	40.9
3500	28
2750	46.9
3000	32.2
3000	31.4
4500	17.2
2250	38.9
3500	31.3
3500	32.6
2750	36.3
5500	13.2
3000	31.4
3500	31.3
2250	53.3
3500	28

a) The symbol and value of the correlation coefficient are as follows:

Round final answer to 2 decimal places.

Select an answer r R² ρ ŷ y p̂ X̄ p μ σ s =

Interpret this value:

There is a strong Select an answer positive negative Select an answer linear quadratic bell-shaped uniform relation between weight and mileage for cars.

b) The symbol and value of the coefficient of determination are as follows:

Select an answer Fail to Reject the Null Accept the Null Reject the Null

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