Question

Consider the following data for two variables, x and y. xi 4 5 7 8 10...

Consider the following data for two variables, x and y.

xi 4 5 7 8 10 12 12 22

yi 12 14 16 15 18 20 24 19

Use the facts that ̄x= 10, ̄y= 17.25, ˆy= 13.05 +.42x, Σ(xi − ̄x)^2= 226, and s= 5.58.

Compute the leverage values for these data. Do there appear to be any influential observations in these data? Explain.

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