A cafeteria proposes to serve 4 main entrees. For planning purposes, the manager expects that the probabilities of each that will be selected by his customers will be:

Selection Probabilities
Chicken 0.50
Roast Beef 0.20
Steak 0.10
Fish 0.20

Of the first 90 customers, 44 selected chicken, 23 selected roast beef, 13 select steak, and 10 selected fish. Should the manager revise his estimates? Use = 0.01.