At a company you must be at work at 8:00 am. mean arrival time is 7:52 am and standard deviation time is 4 minutes

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At a company you must be at work at 8:00 am. mean arrival time is 7:52 am and standard deviation time is 4 minutes. please remember to show steps

a) on a given day what percent of workers are late

b) what percent of workers get to work before 7:45

c) what percent of the workers arrive between 7:59 and 8:00 am

Hint

mean = 7.52 AM

mean = 7+52/60 hrs = 7.8667 hrs

sd = 4/60 hrs = 1.36 hrs

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