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1. The wait time for a computer specialist on the phone is on average 35.6 minutes...

1. The wait time for a computer specialist on the phone is on average 35.6 minutes with standard deviation 4.5 minutes. What is the probability that the wait time for help would be 40 minutes or more?

Draw and label a picture of a normal distribution with both x and z number lines underneath as in class examples, marked with all relevant values. Show all calculations and state areas to 4 decimal places.

2. Below what number of minutes would the 9% of shortest wait times occur?

Draw and label a picture of a normal distribution with both x and z number lines underneath as in class examples, marked with all relevant values. Show all calculations and state areas to 4 decimal places.

Math   Statistics-And-Probability   
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