Question

If the number of people working is 2 standard deviations above the mean, how many standard deviations above do you expect sales to be?
What value of sales would that correspond to?






If the number of people working is 1 standard deviation below the mean, how many standard deviations above or below the mean do you expect sales to be?





What value of sales does that correspond to?







Find the slope estimate of b1.









What does b1 mean, in this context?





Find the intercept b0.







What does b0 mean, in this context?






Write the equation that predicts Sales from Number of Sales People Working





If 17 people are working, what Sales do you predict?







If sales are actually $26,000, what is the value of the residual?






Have the sales been overestimated or underestimated?









Calculate the residuals for the data set.









What are the units of the residuals?




Create a residual plot.













Which (if any) of the conditions are violated. (linearity, outlier, equal spread)





What is the value of R2




What does this value of R2 mean?

Answer 1

R2 means the remainder of a certain number