A manufacturer orders lots of steel rods from a supplier (each lot consists of thousands of rods). Assume that the mean length of the rods in each lot is 3 meters and standard deviation is 0.03 meter. The quality manager accepts a lot if the mean length of the randomly selected sample of 100 rods from that lot is at least 3.005 meters, otherwise the lot is returned to the supplier. a) What percentage of the lots received by the manufacturer will be returned to the supplier? (4 Points) b) If the distribution of the rod length in a lot were highly skewed, how would that affect your answer to part (a)? (1 Point)