When trying to decide what to buy real value is not necessar

When trying to decide what to buy, real value is not necessarily determined by how much you spend on the initial purchase. Instead, cars that are reliable and don

Assume that the significant level a=0.05

Based on the p-value of t test, we can find that Upscale variable is not signifcant because the p-value is larger than 0.05

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So the regression equation is

Value Score = 1.2284 -3.2715*Cost/Km +0.0113*Road-Test Score+0.1686*Predicted Reliability

Regression output				confidence interval
variables	coefficients	std. error	t (df=49)	p-value	95% lower	95% upper
Intercept	1.2890	0.1024	12.583	5.79E-17	1.0831	1.4948
Cost/Km	-3.4753	0.2334	-14.891	8.10E-20	-3.9443	-3.0063
Road-Test Score	0.0113	0.0012	9.556	8.89E-13	0.0090	0.0137
Predicted Reliability	0.1708	0.0100	17.122	2.56E-22	0.1507	0.1908
Upscale	0.0357	0.0295	1.209	.2323	-0.0236	0.0949

When trying to decide what to buy, real value is not necessarily determined by how much you spend on the initial purchase. Instead, cars that are reliable and d

When trying to decide what to buy real value is not necessar

Solution

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