Question
Must show calculations/formula for credit. Any answer given with no calculations/descriptions of how arrived at answers shown will result in no credit for that answer.
Must show calculations/formula for credit. Any answer given with no calculations/descriptions of how arrived at answers shown will result in no credit for that answer. If utilizing excel must state/describe your formulas used and your inputs
I strongly suggest you use excel for this project. The calculations are accomplished much simpler, quicker, and more accurate than doing the formulas by hand. The video embedded in your Canvas course provide a step-by-step process of how to go about it.
- The following chart is data over an 8-month period that shows how much a company spent in advertising and the sales revenue for that month
| MONTH | ADVERTISING $ | SALES $ |
|---|---|---|
| March | 900 | 56000 |
| April | 2700 | 89200 |
| May | 3150 | 98500 |
| June | 1300 | 54000 |
| July | 3400 | 97000 |
| Aug | 1500 | 56000 |
| Sept | 2300 | 93000 |
| Oct | 2250 | 79000 |
a) What is the correlation coefficient? (round to 2 decimals)describe how you utilized excel to arrive at this number (recommended) or show the formula you utilized to arrive at this answer
b) Is it a positive or negative correlation?
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
5th Edition
471862517, 978-0471862512
