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Learning curves are used in production operations to estimate the time required with a repetitive task as an operator gains experience. Suppose a production manager

Learning curves are used in production operations to estimate the time required with a repetitive task as an operator gains experience. Suppose a production manager has compiled 30 time values (in minutes) for a particular operator as she progressed down the learning curve during the first 100 units. The accompanying table is below.

b.Estimate the simple linear regression model and the logarithmic regression model withtime per unit as the response variable and unit number as the predictor variable.(Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)

c.Based onR2, use the best-fitting model to predict the time that was required for the operator to build Unit 69.(Round coefficient estimates to at least 4 decimal places and final answer to 2 decimal places.)

Time_Per_Unit Unit_Number
18.60 2
17.60 7
12.60 9
11.50 13
9.90 19
8.70 19
8.80 24
8.40 27
8.30 29
8.50 32
8.10 37
7.60 41
6.60 41
7.00 46
7.40 50
7.20 50
7.10 55
6.40 60
6.30 62
6.50 65
6.60 67
7.20 70
6.30 73
5.70 80
6.30 80
5.90 89
6.30 90
5.60 91
5.90 95
5.40 100

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