1. Math 1040 Term Project Group 2 Stacey Perko Shanda Miller Stephanie Baker Ben Mansell Heidi Kaibetoney

2. Correlation of GPA  Correlation of GPA and the hours of sleep- (Stacey)  Correlation of GPA and the amount of hours worked during the week- (Heidi)  Correlation of GPA and the number of hours spent studying- (Shanda, Ben, & Stephanie)

3. Our Study Design Finding answers to our variables:  Simple random sampling  Administered a random survey  Salt Lake Community College Students on the College Campus  Classrooms  Hallways  Common areas

4. Our Survey Questions What is your Current GPA as of fall 2011? How many hours on average do you sleep at night? How many hours on average do you study per week? How many hours do you work per week? (If you don’t work, please put zero.)

5. Data: GPA 3.52.82.543.82.92.32.63.42.8 3.93.343.82.7333.1 3 23.63.93.83.1 3.2 3.33.2 443.83.52.53.83.13.32.83 3.7 2.63.13.333.533.1 3.52.943.62.92.82.63.53.33 3.22.72.53.62.93.332.93.73.9 3.63.53.73.833.132.944 3.83.22.73.93.33.53.633.23.5 3.82.633.93.53.7433

6. Data: Hours of Sleep 3020102519242018033 2040 0480015100 181540 24 0221538 4035280244815302025 220040016 34220 4010452048244032026 20 0048324010028 2530010322460933 3040020160130032 02540243224172540

7. Summary of Statistics and Frequency Histograms of GPA and Hours of Sleep nmeanVarianceStd. Dev.media n Rang e minmaxQ1Q3Std. Err. GPA993.2828 283 0.211436820.45982263.222433.70.0462 139 Hrs of Sleep 996.6969 695 2.00927641.417489576410680.1424 6306 GPA Hours of Sleep

8. Box Plots and Scatter Plots GPA & Hours of Sleep GPA Hours of Sleep Correlation Coefficient Between GPA and hours of sleep is 0.06399

9. Data: Hours Worked per Week 3020102519242018033 2040 0480015100 181540 24 0221538 4035280244815302025 220040016 34220 4010452048244032026 20 0048324010028 2530010322460933 3040020160130032 02540243224172540

10. Summary of Statistics and Frequency Histograms of GPA and Hours Students Work nmeanVarianceStd. Dev.media n Rang e minmaxQ1Q3Std. Err. GPA993.2828 283 0.211436820.45982263.222433.70.0462 139 Work Hrs 9920.7373 73 213.9915514.6284522480 10321.4702 145 GPA Hours Worked in a Week

11. Box Plots and Scatter Plots GPA & Weekly Hours Worked GPAHours Worked in a Week Correlation Coefficient Between GPA and Hours Worked in a Week is 0.0623 Mode: 3.0 Upper Fence: 4.75 Lower Fence: 1.95 Mode: 0 Upper Fence: 63 Lower Fence: -23

12. Data: Hours of Study in a Week 108 14164655 541510895588 1 15 141228109 863208146469 151071520108646 984512107365 5 15141210878 37 1410141510411 83251218126466 1815861210343

13. Summary of Statistics and Frequency Histograms of GPA and Hours Studied in a Week nmeanVarianceStd. Dev.media n Rang e minmaxQ1Q3Std. Err. GPA993.2828 283 0.211436820.45982263.222433.70.0462 139 Study Hrs 9994.52431068241256123.3048 9 GPA Hours Studied in a Week

14. Box Plots and Scatter Plots GPA & Hours Spent Studying GPAStudy Hours Correlation Coefficient Between GPA and hours of sleep is 0.06229 Mode: 10 Outliers: 25

15. Conclusion  Difficulties and Surprises Encountered