26. Recently, students in a marketing research class were interested in the driv

ID: 3317973 • Letter: 2

Question

26. Recently, students in a marketing research class were interested in the driving behavior of students. Specifically, the marketing students were interested if exceeding the speed limit was related to social activity. They collected the following responses from 100 randomly selected students Males Females Speeds 40 10 Does Not Speed 25 25 P value 0.002 Value df Pearson Chi-Square 9.890 Based on the analysis, what can be concluded? A. Driving behavior and gender are correlated. B. Driving behavior and gender are not related. C. Driving behavior and gender are related. D. No conclusion is possible

Explanation / Answer

Under H0, Expected Frequencies:

Speeds

Does Not

Male

32.50

65.00

Female

17.50

35.00

100

Test Statistic Calculation:

OBS

EXP

(O-E)2/E

32.5

1.7308

17.5

3.2143

32.5

1.7308

17.5

3.2143

TOTAL

9.8901

TEST STATISTIC = 9.8901

a. driving behavior and gender are correlated
Explanation:
Thus, we have sufficient evidence to reject H0, as Test Statistic is greater than Critical Value.