The chief of security for the Mall of the Dakotas directed a study of theft. He selected a sample of 160 boxes that had been tampered with and ascertained that, for 65 of the boxes, the missing pants, shoes, and so on were attributed to shoplifting. For 35 boxes, employees had stolen the goods, and for the remaining 60 boxes he blamed poor inventory control. In his report to the mall management, can he say that shoplifting is twice as likely to be the cause of the loss as compared with either employee theft or poor inventory control and that employee theft and poor inventory control are equally likely? Use the 0.05 signicance level. H91 The proportions are as stated. H1: The proportions are not as stated. a. State the decision rule using 0.05 signicance level. (Round your answer to 3 decimal places.) b. Compute the value of chisquare. (Round your answer to 3 decimal places.)