Question

Find the regression line for the following set of data, where r= −0.959 and use it...

Find the regression line for the following set of data, where r= −0.959 and use it to predict the crash fatality rate when lemon imports is 500.

Lemon imports (x)

230

265

358

480

530

x̄=372.6

Sx=130.8

Crash fatality rates (y)

15.9

15.7

15.4

15.3

14.9

x̄=15.44

Sx=0.385

Critical Values: z0.005 = 2.575, z0.01 = 2.325, z0.025 = 1.96, z0.05 = 1.645

When d.f.=6: t0.005 = 3.707, t0.01 = 3.143, t0.025 = 2.447, t0.05 = 1.943

When d.f.=9: t0.005 = 3.250, t0.01 = 2.821, t0.025 = 2.262, t0.05 = 1.833

When d.f.=44: t0.005 = 2.690, t0.01 = 2.412, t0.025 = 2.014, t0.05 = 1.679

When d.f.=100: t0.005 = 2.625, t0.01 = 2.364, t0.025 = 1.984, t0.05 = 1.660

Math   Statistics-And-Probability   
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