3. the weights of apples in a shipment from al's orchards are normally distributed with a mean of 142 grams and a standard deviation of 9 grams. the weights of apples in a shipment from zippy's orchards are normally distributed with a mean of 165 grams and a standard deviation of 13 grams.
a rotten apple has a mean of 156 grams. was it more likely to come from al's or from zippy's? use z-scores to explain. show your work