17. Cattle The Virginia Cooperative Extension reports that the
mean weight of yearling Angus steers is 1152 pounds. Suppose
that weights of all such animals can be described by a Normal
model with a standard deviation of 84 pounds.
a) How many standard deviations from the mean would a steer
weighing 1000 pounds be?
b) Which would be more unusual, a steer weighing 1000 pounds
or one weighing 1250 pounds?