Suppose that x and y are two variables of a population and that the assumptions for regression inferences are met with x as the predictor variable and y as the response variable.
a. What statistic is used to estimate the slope of the population regression line?
b. What statistic is used to estimate the y-intercept of the population regression line?
c. What statistic is used to estimate the common conditional standard deviation of the response variable corresponding to fixed values of the predictor variable?
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