[b] (4 marks) Suppose data point 223 is removed and the linear regression is rerun. Indicate t of the change on the following; explain your...
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[b] (4 marks) Suppose data point 223 is removed and the linear regression is rerun. Indicate t
of the change on the following; explain your answer.
[i] The slope, A1
[ii] The mean square error, $2
[c] (3 marks) Assess the assumption of constant variance in the model error term, e;.
[d] (3 marks) Assess the assumption of normal errors.
[e] (3 marks) Should you investigate variable transformations? (You don't need to specify detail

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