Q27 A manufacturer knows that their items have a normally distributed lifespan, with a mean of 10.5 years, and standard
Posted: Tue Apr 26, 2022 5:57 pm
Q27
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 10.5 years, and standard
deviation of 2.3 years.
If you randomly purchase 16 items, what is the probability that
their mean life will be longer than 10 years?
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 10.5 years, and standard
deviation of 2.3 years.
If you randomly purchase 16 items, what is the probability that
their mean life will be longer than 10 years?