Question 1105772
124/189 means 65/189 were men or 0.344
Can use a one-tailed since there is expectation proportion of men > 0.25
Use a one sample proportion (z-test), critical value z>2.328
test statistic is (xbar-x)/sqrt (p*(1-p))/n); p=0.25
This is 0.094/0.0315
z=2.98
p=0.001
Since p < 0.01, reject Ho and conclude the percentage of men is actually greater than 25%.