the personnel office at a large electronics firm regularly schedules job interviews and maintains records of...

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the personnel office at a large electronics firm regularly schedules job interviews and maintains records of...

the personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. from the last records, they have found the length of the first interview is normally distributed, with mean 34 minutes and standard deviation of 9 minutes

A. What is the probability that the first interview will last 40 minutes or longer?

B. Seven first interviews are usually scheduled per day. What is the probability that the average length of time for the seven interviews will be 40 minutes or longer?

math Statistics-And-Probability

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