The personnel office at a large electronics firm regularly schedules job intervi

Question

The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records, they have found that the length of a first interview is normally distributed, with mean = 32 minutes and standard deviation = 8 minutes. (Round your answers to four decimal places.) B. Six first interviews are usually scheduled per day. What is the probability that the average length of time for the six interviews will be 40 minutes or longer? Please provide work rather than just answers. Also have a TI-84 plus so if you could provide information on how to calculate on that too.

Explanation / Answer

B)

for TI-84"

put =1-normalcdf(-1E99,40,32,3.2660) and enter ; u will get same result as above.

( please revert for any clariifcation)

for normal distribution z score =(X-)/ here mean=       = 32.000 std deviation   == 8.0000 sample size       =n= 6 std error=x=/n= 3.2660

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