Answer:
There is enough evidence to support the attorney’s claim
Step-by-step explanation:
Given that one attorney claims that more than 25% of all the lawyers in Boston advertise for their business.
Sample size n =200
Sample proportion =
Hypotheses:
(right tailed testat 5% significance level)
Assuming H0 to be true, std error of p =
Test statistic z = p diff/std error
=
p value for one tailed =0.0170
Since p <0.05 we reject null hypothesis
There is enough evidence to support the attorney’s claim