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Consider the following regression results based on 30 observations. = 238.33 - 0.95x + 7.13x2 + 4.76x3;SSE = 3,439
= 209.56 - 1.03x1 + 5.24(x2 + x3);SSE = 3,559
a.Formulate the hypotheses to determine whether the influences of x2 and x3 differ in explaining y.
b.Calculate the value of the test statistic.
c.At the 5% significance level,find the critical value(s).
d.What is your conclusion to the test?
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