In the study of management, we know that managers perform five major activities. Three of them are: set goals, motivate and communicate, and develop people. What are the other two activities that managers do?

At cooly cola, we are testing the appeal of our new diet one cola. in a taste test of 250 randomly chosen cola drinkers, 200 consumers preferred diet one cola to the leading brand. assuming that the sample were large enough, the large-sample 95% confidence interval for the population proportion of cola drinkers that prefer diet one cola would be: