In: Statistics and Probability
Consider the following sample data for the relationship between advertising budget and sales for Product A:
Observation | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
---|---|---|---|---|---|---|---|---|---|---|
Advertising ($) | 80,000 | 80,000 | 90,000 | 100,000 | 100,000 | 110,000 | 120,000 | 120,000 | 130,000 | 140,000 |
Sales ($) | 499,000 | 477,000 | 546,000 | 614,000 | 623,000 | 653,000 | 747,000 | 714,000 | 785,000 | 858,000 |
What is the slope of the "least-squares" best-fit regression line?
Please round your answer to the nearest hundredth.