Which of the following is NOT an assumption made about the random error e in a simple linear regression model? A. The distribution of e is normal. B. The mean of e is Bo + B1x. C. The standard deviation of e is constant for all x values. D. €1, €2, ..., En are independent of one another.

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A: It is an important part of statistics . It is widely used .

Q: Calculate estimates of the standard deviations sx, sy of the samples x = (5, 9, 7) and y = (−1, 2,…

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Q: Calculate estimates of the standard deviations s,, Sy of the samples z = (5,9, 7) and y = (-1, 2, 5)…

A: For x, x x-x (x-x)2 5 -2 4 9 2 4 7 0 0 Total   21   8 wherex=∑xn=213=7…