(a) Fit a multiple linear regression equation to the following data set. (b) Test the hypothesis that 0 = 0. (c) Test the hypothesis that 3 = 0. (d) Test the hypothesis that the mean response at the input levels x1 = x2 = x3 = 1 is 8.5.

Lecture 6: Random Variables 8.1 Random Variables - Definition: A random variable assigns a number to each outcome of a random circumstance, or, equivalently, a random variable assigns a number to each unit in a population. - Two broad classes of random variables: discrete random variables and continuous random...