In: Statistics and Probability
An electronics company is looking to develop a regression model
to predict the number of units sold for a special running watch.
Data is provided below:
| Sales (units) | Price ($) | Advertising ($) | Holiday | 
| 500 | 100 | 50 | Yes | 
| 480 | 120 | 40 | Yes | 
| 485 | 110 | 45 | No | 
| 510 | 103 | 55 | Yes | 
| 490 | 108 | 40 | No | 
| 488 | 109 | 30 | No | 
| 496 | 106 | 45 | Yes | 
Compile a spreadsheet for the data and determine the predicted number of units sold if the watch is sold on a holiday for $200 while $150 is spent on advertising.
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 370  | 
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| 
 420  | 
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| 
 424  | 
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 860  |