Answer
There is not sufficient evidence to reject that for those saying that monitoring e-mails is unethical, the proportion of workers is the same as the proportion of managers.
Work Step by Step
The value of the test statistic is:z=2.17, the P-value is: P=0.03, hence larger than the significance level, hence the null hypothesis shouldn't be rejected. Hence we can say that there is not sufficient evidence to reject that for those saying that monitoring e-mails is unethical, the proportion of workers is the same as the proportion of managers.
