Question

Law enforcement agencies in Charlotte, NC conduct an average of 120,000 traffic stops per year. By law, the agencies collect information about all traffic stops, the reason for the stop, and the type of enforcement action taken. A random sample of 250 traffic stops revealed that 52 of the drivers were under 25 years of age. A total of 160 were issued a citation while the rest were given a verbal or written warning. A total of 32 drivers were under 25 years of age and issued a citation.

1. Use this information to complete the contingency table below. Citation Warning Total Age Under 25 32 25 or older 128 20 52 70 198 250 Total 160 90

QUESTION) Use the Two Proportion Resampling Test app (both linked and embedded below) to conduct this test. Report your p-value here:

Use this external link to the Two Proportion Resampling Test if the app does not load properly on your computer. (Right click to open in a new tab or window.)

Answer 1

Solubion- Applying proportion test From Given information, 95 or older 12.8 198 under 05 x = 32 X2=128 m = 52 n2 = 198 R = x/n #, * (ng = 32 À, = 0.6154 P = 0.6465 Estimated difference in proportion = p. - . -0.6154-0.6465 = -0.0311 estimator of pooled proportions'= (x22) / (mithel put the values in above equation = 327128 52+198 - de 0 = 0.64 lalaa <JOY s = f ( - 2(m + 'm, ). = 10.6154 (1-0.6154) Yset Vigo) = (0.2366)(0.02428) 0.005744

20.0758.- test statistics z = P - P2 - se - 0.6154 - 0,6465 0.0758 = -0.0311/0.0758 -0.4103 = 0.659207 (c. From 2-table] . right tail J ...p-value = 0.659207