Math 1040 Term Project Group Members: Daniel Larsen, Aaron Magro, Whitney Marsh, Malinda Martinez & Angela McBeth

Do cell phone minutes used per month depend on a person’s age?

Collection of Data Random sample of… Close acquaintances Co-workers Classmates Systematic random sampling

Collection of Data

Mean Minutes Used

Data Graphs Our first quantitative variable is cell phone minutes used in a month. The unit of measurement for this variable is minutes. A few possible values for this first quantitative variable are 300, 500 and 700. Our second quantitative variable is age. The unit of measurement for this variable is whole integers. A few possible values for this second quantitative variable are 15, 25, 35, 45.

Conclusion The t-table shows that the critical value is roughly 0.195 Linear Correlation Coefficient: r= -0.103 Equation for line of regression: -2.19x + 547.40 Correlation coefficient: -0.103 The correlation coefficient suggests that there is a small relationship between both variables, Age and Cell Minutes used. The data shows that age plays a small role in the number of minutes used, which is the older ones age is, the fewer cell minutes used.