The weight of a car can influence the mileage that the car can obtain. A random sample of 19 cars was taken and the weight (in pounds) and mileage (in mpg) were recorded and are in the table below. Test at the 5% level for a negative correlation between weight and mileage of cars. weight 3500 3000 4000 3500 5500 4500 3000 3500 3500 2500 3000 3000 3000 2750 2250 2750 4500 3500 4500 mileage 28 32.2 23.6 31.3 13.2 17 31.5 31.3 28 40.9 31.4 31.4 32.2 36.3 53.3 46.9 19.5 32.6 17.2
• Assume the scatterplot is linear enough to continue. N: Name the test The conditions are met to use a Linear Regression T-Test T: Test Statistic • The symbol and value of the random variable on this problem are as follows. • Round your answers to 4 decimal places if needed. = 0.9232 x • The formula set up of the test statistic is as follows. Round initial values to 4 decimal places: т 15(1-( -() (n-2) )^2)/ -2)) • Final answer from technology to 2 decimal places: t =
The weight of a car can influence the mileage that the car can obtain. A random sample of 19 cars was taken and the weig
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The weight of a car can influence the mileage that the car can obtain. A random sample of 19 cars was taken and the weig
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