Question: Suppose you have developed a regression model to explain the relationship between y and x1, x2, and x3. The ranges of the variables you observed

Suppose you have developed a regression model to explain the relationship between y and x1, x2, and x3. The ranges of the variables you observed were as follows: 10 ≤ y ≤ 100, 5≤ x1 ≤ 55, .5 ≤ x2 ≤ 1, and 1,000 ≤ x3 ≤ 2,000. Will the error of prediction be smaller when you use the least squares equation to predict y when x1 = 30, x2 = .6, and x3, = 1,300, or when x1 = 60, x2 = .4, and x3 = 900? Why?

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