Amount of work-hours involved in the festival preperation

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Reference no: EM1396332

Overall, the amount of work-hours involved in the festival preperation is normally distributed around 100 hours withn a standard deviation of 12 hours.

a) Whats the probability that the mean number of work hours will be between 90-95?

b) The members at or below the 15%ile of number of worked-hours must attend a one-on-one meeting with their supervisor. At least how many work-hours you should have in order to avoid attending such session?

c) How likely (what is the probability) is it to have the number of involved work-hours below 80?

d) How likely (what is the probability) is it that some employee will have his/her involved work-hours between 93 and 105?

Reference no: EM1396332

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