(Choose 1 answer)
Compute the test statistic used to test the null hypothesis that the two proportions are equal using the following data:
A random sample of 600 adult residents of Maricopa County found that 480 were in favor of increasing the highway speed limit to 75 mph, while another sample of 400 adult residents of Pima County found that 300 were in favor of the increased speed limit.
A. 1.87
B. -1.87
C. 1.64
D. -1.64
ORi
Q: 15
