The Survey:
SURVEY. Circle the appropriate option. ECAP
1. What is your gender? MALE FEMALE
2. Do you drive? YES NO
3. How long have you had your license? 0-6months 6-12months 12-18months 18+months
4. Have you been involved in any accidents? YES NO
If yes, how many? 1 2 3 4 5+
5. Have you gotten any speeding tickets? YES NO
If yes, how many? 1 2 3 4 5+
6. Have you gotten a ticket for any moving violations? YES NO
If yes, how many? 1 2 3 4 5+
7. Have you gotten a ticket of any other kind while driving? YES NO
If yes, what was it (what were they) for? _______________________________
Significance Test:
We used the chi-squared test for association for our data. We used a two way table to get our results.
Hypothesis:
u1= The true number of automobile violations for teenage males
u2 = The true number of automobile violations for teenage females
Ho: u1=u2
Ha: u1>u2
Significance level: α= 0.05
The test:
chi squared analysis:
Calculations for expected cell counts:
Accident Speeding Moving V Total
1 16 9 3 28
13.42 8.75 5.83
2 7 6 7 20
9.58 6.25 4.17
Total 23 15 10 48
note: one of the expected cell counts does not have a p-value of less than 5.0.
Chi-squared: 0.497 + 0.007 + 1.376 + 0.596 + 0.010 + 1.927 = 4.514
p-value = 0.105
degrees of freedom = 2