The quality control manager at a computer manufacturing company believes that the mean life of a computer is 102 months, with a variance of 100.
if he is correct, what is the probability that the mean of a sample of 82 computers would be less than 105.29 months?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true