1.For a linear model with a single predictor, what are we looking for when we look at a scatterplot of the dependent vs the independent variable?

A		Summary information for the residuals of the linear model
B		The intercept and the slope(s)
C		The adjusted r-squared
D		Confidence intervals for the coefficients

2

When we examine the residuals of an lm object, we are looking for which of the following::

A. The normal Q-Q plot should have values on the x=y line.

B. The residuals vs the fitted values should not have a pattern.

C.Residuals vs. Leverage plot should have points evenly distributed throughout the box.

D. A AND B

3.Which of the following is NOT provided by the summary() command for an lm object?

	a	Summary information for the residuals of the linear model
	b	The intercept and the slope(s)
	c	The adjusted r-squared
	d	Confidence intervals for the coefficients