Using the dataset below, ):

A. ObtainBonferronijointconfidenceintervals for₀and₁,usinga90% family confidence coefficient. Interpret the confidence intervals.

B. A consultanthassuggestedthat₀be0and₁be14.Doesthe joint confidence intervals from part A support this view?

C. Assume mean service time is to be predicted for 5 different levels of number of copiers, with a 95% level of family confidence. What is the best approachamongotheralternatives ?Justify the answer.

20 2 60 4 46 3 41 2 12 1 137 10 68 5 89 5 4 1 32 2 144 9 156 10 93 6 36 3 72 4 100 8 105 7 131 8 127 10 57 4 66 5 101 7 109 7 74 5 134 9 112 7 18 2 73 5 111 7 96 6 123 8 90 5 20 2 28 2 3 1 57 4 86 5 132 9 112 7 27 1 131 9 34 2 27 2 61 4 77 5