The Acme Candy Company claims that 60% of the jawbreakers it produces weigh more than 0.4 ounces. Suppose that 800 jawbreakers are selected at random from the production lines. Would it be unusual for this sample of 800 to contain 553 jawbreakers that weigh more than .4 ounces? Consider as unusual any result that differs from the mean by more than 2 standard deviations.
What is 60% of 800? Is it less than 553? Then, no, it is not unusual.