Sometimes the extent to which two groups differ is quite obvious. For example, if one group of individuals has a mean of 20 speeding tickets, while another group has a mean of 2, we can be pretty sure that the difference is statistically significant. But sometimes it is less clear. What if one group had a mean of 10, while the other had a mean of 7? T-tests provide a way to determine if differences between means are enough to be statistically significant.For this assignment, you will conduct a two-sample t-test to determine if college freshmen and seniors have a significantly different number of speeding tickets. Using the data provided below, conduct a two-sample t-test.

Freshman:

2

1

4

2

5

1

0

2

4

2

Seniors

1

2

1

1

0

2

1

0

1

2

Then, create a summary of 1-2 paragraphs in which you address the following:

• Present the result of the two-sample t-test.
• Explain whether or not the result is statistically significant.
• Discuss what this implies for freshmen and seniors, and whether or not the results fit with your own expectations.