Homework Soursea study done in the 1990s indicated that 6 of taxi drivers i
a study done in the 1990\'s indicated that 6% of taxi drivers in new york city regularly ran a stop sign. a new study is being done to determine if recent law changes has affected this rate. how many drivers must be investigated so that we can be 99% confident that our results are within a margin of 2%
a study done in the 1990\'s indicated that 6% of taxi drivers in new york city regularly ran a stop sign. a new study is being done to determine if recent law changes has affected this rate. how many drivers must be investigated so that we can be 99% confident that our results are within a margin of 2%
a study done in the 1990\'s indicated that 6% of taxi drivers in new york city regularly ran a stop sign. a new study is being done to determine if recent law changes has affected this rate. how many drivers must be investigated so that we can be 99% confident that our results are within a margin of 2%
Solution
Margin of error = E = 0.02
p = 0.06
q = 0.94
p*q = 0.0564
Z value = 2.33
(Z value/ E)^2 = 116.5^2 =13572.25
n = pq * (Zvalue/E)^2 =766.28~766.
