According to a poultry industry news website, the weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1511 grams and standard deviation 198 grams. Use the Cumulative Normal Distribution Table to answer the following. (a) What proportion of broilers weigh between 1143 and 1242 grams? (b) What is the probability that a randomly selected broiler weighs more than 1670 grams? (c) Is it unusual for a broiler to weigh more than 1700 grams? Round the answers to at least four decimal places.

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