Part a) Calculate a time weighted average (TWA) for an employee with the following typical noise exposures: 1.5 hours operating the lathe (90 dBA) 4.5 hours working in loud open office area (85 dBA) 1 hour working in packaging area (95 dBA) 1 hour operating the sander (97 dBA) Show your work for partial credit (upload scratch paper). Part b) Is the above noise exposure OK or Not? Why or why not? Part c) What, if anything, do you recommend to company leadership to prevent potential hearing damage