Achemical plant employing 900 employees (employees work a regular 40-hour work week) has the following safety and health record for the year 2003: file 1 forklift truck drops pallet load of packaged raw material; no injuries; some material wasted; pallet destroyed; extensive clean-up required. file 2 worker suffers heat cramps (illness) from continuous exposure to hot process; admitted to hospital for treatment: 2 weeks off. file 3 worker burns hand on steam pipe; first aid received and worker returns to workstation. file 4 worker suffers dermatitis from repeated contact with solvent; 1 week of work lost; another 4 weeks of work restricted to an assembly job. file 5 worker fractures finger in packaging machine; worker sent to hospital for treatment; back on the job the next day. file 6 maintenance worker lacerates hand when screwdriver slips; five sutures given; worker back on the job the next day. file 7 pressure vessel explodes; extensive damage to processing area; miraculously, no one is injured. file 8 worker gets poison ivy from exposure a week earlier while removing weeds around the plant perimeter fence; worker receives doctor’s treatment, but no workdays are lost. file 9 worker becomes ill from continuous exposure to hydrogen sulphide leaks from furnace area; misses 2 weeks’ work; leaks are repaired. file 10 worker gets severe poison ivy from weekend outing with boy scout troop; misses 2 days of work. file 11 maintenance worker falls from fractionating tower and is killed. file 12 worker fractures an arm in transmission system that powers pulverizer mill; loses 3 days of work and an additional 6 weeks of work is in the production scheduling office before returning to regular job.(a) calculate the following incidence rates: 1. lwdi2. total injury incidence rate3. total illness incidence rate4. fatality incidence rate5. number-of-lost-workdays rate (injuries and illnesses)6. specific-hazard incidence rate (fractures)(b) how does the safety and health record of this firm compare with that of other manufacturing companies and with industries in general?