Question: For problems 25 to 27, use the following data for the calculation time for a given number of jobs. Hundreds of hours 1 2 3

For problems 25 to 27, use the following data for the calculation time for a given number of jobs. Hundreds of hours 1 2 3 4 5 Repair hours 10 40 30 80 90

25. What is the approximate value of the intercept using the least squares method?

a. -10 b. 0 c. 20 d. none of the above

26. What is the approximate value of the slope using the least squares method?

a. 10 b. 15 c. 20 d. none of the above

27. What is the closest predicted time for 450 hours?

a. 80 b. 760 c. 8990 d. none of the above

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