A well-educated lumberjack decides to use linear regression to predict the demand for firewood based on the ambient temperature
He has collected data on firewood sales and temperature for the last several days and has performed some preliminary calculations as shown in the table. What is his regression equation based on the data?
Temp Ricks Temp Squared Temp ? # Ricks
33 17 1089 561
19 32 361 608
34 20 1156 680
34 18 1156 612
20 33 400 660
24 30 576 720
17 34 289 578
30 25 900 750
38 16 1444 608
23 29 529 667
Sums 272 254 7900 6444
A) Ricks = 50.6 - 0.93 × Temp
B) Temp = 53.3 - 1.0 × Ricks
C) Ricks = 0.93 - 50.6 × Temp
D) Temp = 1.0 - 53.3 × Ricks
Answer: A
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