When solving for SE(A) at the top of page 112 in Fox's textbook, there is a sqrt(329,731) in the numerator. Where did this number come from? I can't find the value in the original Module 8 material, and I can't find the original data to test different values out.

Also, when solving for test statistic with B sub 0, how did you calculate the B in the numerator of the formula t sub 0 = (B-B sub 0)/SE(B). The formula for m sub i isn't exactly clear. Is this even the correct test statistic that we are supposed to be calculating?