# The following data are for calculator sales in units at an electronics store over the past 9 weeks. **Let me know if I need to post any more information to help solve any of the problems** Thank You! Week Calculator Sales 1 46 2 49 3 43 4 50 5 53 6 58 7 62 8 56 9 63 1. Is the trend projection model significant? YES or NO 2. What percentage of the variation in Calculator Sales is explained by Week (the coefficient of determination)? 3. What is the relationship between weeks and calculator sales (based on coefficient of correlation and other results)? (circle one from each column) Positve Strong Negative Weak None Perfect 4. How many calculator sales would you forecast for Week 12? Show both the regression equation as well as the forecast. (round to 2 decimals)

The following data are for calculator sales in units at an electronics store over the past 9 weeks. **Let me know if I need to post any more information to help solve any of the problems** Thank You!

Week Calculator Sales
1 46
2 49
3 43
4 50
5 53
6 58
7 62
8 56
9 63
1. Is the trend projection model significant? YES or NO

2. What percentage of the variation in Calculator Sales is explained by Week (the coefficient of determination)?

3. What is the relationship between weeks and calculator sales (based on coefficient of correlation and other

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