*** I was able to answer a-c; got lost on d and e******
An office manager has received a report from a consultant thatincludes a section on equipment replacement. The report indicatesthat scanners have a service life that is normally distributed witha mean of 41 months and a standard deviation of 4 months.
On the basis of this information, determine the percentage ofscanners that can be expected to fail in the following timeperiods.
a. Before 38 Months of Service (I have answered)
a.0.226622.6% of scanner may fail before 38 monthsb. Between 40 and 45 months of service.
(I have answered)
Z= -0.25 from the probability corresponding
OR
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