Past participantin a training program designed to upgrade the skills of production. Line supervisors spent an...

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Statistics

Past participantin a training program designed to upgrade theskills of production. Line supervisors spent an average of 500hours on the program with standard deviation of 100 hours. Assume anormal distribution.
(i) What is the probability that a participant selected atrandom will require no less than 500 hours to complete the program?
(ii) What is the probablity that a participant selected atrandom will take between 500 and 650 hours to complete the program?
(iii) What is the probablity that a participant selected atrandom will take more than 700 hours to complete the program ?
(iv) What is the probablity that a participant selected atrandom will take between 550 and 650 hours to complete the program?
(v) What is the probablity that a participant selected at randomwill require fewer than 580 hours to complete the program ?
(vi) What is the probablity that a participant selected atrandom will take between 480 and 570 hours to complete the program?

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3.6 Ratings (488 Votes)

here we have mean 500 standard deviarion 100 In normal distribution Z X mean standard deviation so ithe probability that a participant selected at random will require no less than 500 hours to complete the program is PX 500 PZ 500500100 PZ 0 1 PZ 0 1 05 05 See Answer

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