Question: An office manager has received a report from a consultant that includes a section on equipment replacement. The report indicates that scanners have a service

An office manager has received a report from a

An office manager has received a report from a consultant that includes a section on equipment replacement. The report indicates that scanners have a service life that is normally distributed with a mean of 41 months and a standard deviation of 4 months. If a scanner fails within the warranty period of 36 months, it will be replaced with a new scanner at no charge. This warranty period corresponds to a z value of -1.25. Given this, what proportion of the scanners is expected to fail during the warranty period? (Note: proportion is a value 0,1 inclusive.)

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