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Store Temperature Weekly Sales 1 10 2.5 2 12 9.5 3 14 8.4 4 14.3 8.2 5 15 7.6 6 15 6.9 7 15.5 6.8
Store | Temperature | Weekly Sales |
1 | 10 | 2.5 |
2 | 12 | 9.5 |
3 | 14 | 8.4 |
4 | 14.3 | 8.2 |
5 | 15 | 7.6 |
6 | 15 | 6.9 |
7 | 15.5 | 6.8 |
8 | 18 | 6.7 |
9 | 20 | 6.7 |
10 | 20 | 6.6 |
11 | 20.5 | 6.3 |
12 | 21 | 6.1 |
13 | 21 | 5.9 |
14 | 22.4 | 5.4 |
15 | 23 | 5.4 |
16 | 24 | 5.2 |
17 | 24.3 | 5 |
18 | 25 | 5 |
19 | 25 | 4.9 |
20 | 25 | 4.1 |
21 | 26 | 3.9 |
22 | 27 | 3.6 |
23 | 28 | 3.1 |
24 | 30 | 3 |
25 | 31 | 2.8 |
3) [1 mark] State the fitted regression equation. Do not show your work. Find the fitted regression coefficients using Excel, but use proper notation. Provide each fitted coefficient to 3 decimal places
6) [4 marks] Using your answer from question 3, calculate the residual for the third observation. Show 1) the equation you use, 2) how you plug in, and 3) your final answer, rounded to the nearest 2 decimal places. Explain what this value means in this context, in one sentence.
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