Marta, the CEO of a manufacturing plant, must decide whether or not she should renew Jacob’s contract. Jacob is the mechanic in charge of making sure the plant’s machinery works properly. Every time a machine breaks down, there are delays, and delays cost money. Marta gathered some information to help her make the best decision. Below is a dot plot showing the number of days between the machinery breaking down. Help Marta out: should Jacob keep his job, or is it time to find a new mechanic? Explain your answer clearly and completely using at least 1 measure of center (mean, median, or mode), and 1 measure of variability (interquartile range, range, or mean absolute deviation) to support your decision.