(a) Find the five-number summary, and (b) draw a box-and-whisker plot of the data. 4 8 8 6 2 9 879 6 9 5 2629 87 79 口 (a) Min = (Simplify your answer.)

Here is a data set: 69 45 33 42 34 61 39 38 42 59 47 41 40 38 54 41 40 40 45 44 63 52 40 38 56 54 32 42 30 43 You are examining the data with a stem-and-leaf plot. Here is the start of the plot. Finish the plot.3# |  023488894# |  000011222345575# |  244696# |

H. Use the model to predict sales when the business spends $885 ($'000) in the advertisement. Does the model underestimate or overestimate sales? G. What is the value of the coefficient of determination, R2? What does R2 tell us about explained variation in y? (Refer to Coefficient of Determination LO 12-4).   H. Use the model to predict sales when the business spends $885 ($'000) in the advertisement. Does the model underestimate or overestimate sales?

Please explain