Year Quarter Period Cost/Unit ($) 1 1 1 $20.00 2 2 $17.23 3 3 $13.39 4 4 $17.94 2 1 5 $20.29 2 6 $25.61 3 7 $22.62 4 8 $29.63 3 1 9 $23.87 2 10 $20.35 3 11 $26.32 4 12 $25.50 4 1 13 $20.90 2 14 $28.48 3 15 $32.65 4 16 $25.78 5 1 17 $28.90 2 18 $32.61 3 19 $28.66 4 20 $25.27 6 1 21 $25.80 2 22 $35.71 3 23 $27.26 4 24 $27.89 7 1 25 $28.50 2 26 $28.64 3 27 $32.52 4 28 $28.24 8 1 29 $37.95 2 30 $28.59 3 31 $37.07 4 32 $38.16 Construct a time series plot. What type of pattern exists in the data? The time series plot shows a horizontal pattern.The time series plot shows a nonlinear trend pattern. The time series plot shows an upward trend pattern.The time series plot shows a downward trend pattern.The time series plot shows a seasonal pattern. (b) Use simple linear regression analysis to find the estimated parameters for the line that minimizes MSE for this time series. (Round your answers to two decimal places.) b0=b1= (c) What is the average cost increase (in $) that the firm has been realizing per quarter? (Round your answer to two decimal places.) $

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Year Quarter Period Cost/Unit ($)
1 1 1 $20.00
  2 2 $17.23
  3 3 $13.39
  4 4 $17.94
2 1 5 $20.29
  2 6 $25.61
  3 7 $22.62
  4 8 $29.63
3 1 9 $23.87
  2 10 $20.35
  3 11 $26.32
  4 12 $25.50
4 1 13 $20.90
  2 14 $28.48
  3 15 $32.65
  4 16 $25.78
5 1 17 $28.90
  2 18 $32.61
  3 19 $28.66
  4 20 $25.27
6 1 21 $25.80
  2 22 $35.71
  3 23 $27.26
  4 24 $27.89
7 1 25 $28.50
  2 26 $28.64
  3 27 $32.52
  4 28 $28.24
8 1 29 $37.95
  2 30 $28.59
  3 31 $37.07
  4 32 $38.16
Construct a time series plot. What type of pattern exists in the data?
The time series plot shows a horizontal pattern.The time series plot shows a nonlinear trend pattern.    The time series plot shows an upward trend pattern.The time series plot shows a downward trend pattern.The time series plot shows a seasonal pattern.
(b)
Use simple linear regression analysis to find the estimated parameters for the line that minimizes MSE for this time series. (Round your answers to two decimal places.)
b0=b1=
(c)
What is the average cost increase (in $) that the firm has been realizing per quarter? (Round your answer to two decimal places.)
(d)
Compute an estimate of the cost/unit (in $) for the next quarter. (Round your answer to two decimal places.)
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