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johnwayne88 johnwayne88
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4 years ago
Using the data shown in the table, develop a regression line that can be used to predict the demand for time period number 20. What is the prediction equation and what is your forecast for period 20?
 
  Period Demand Period  Demand
   1 16 16
   2 20 40
   3 24 72
   4 27 108
   5 29 145
   6 30 180
   7 32 224
   8 35 280
   9 36 324
   10 38 380
  Sums 55 287 1769
 
  What will be an ideal response?
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Ha d.Ha dhe224
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4 years ago
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Answer:
= = = 2.3
= - = 28.7 - 2.3 (5.5) = 16

The equation is y = 16 + 2.3 x

The forecast for period 20 is y = 16 + 2.3  20 = 62.
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