Assume that the data is normally distributed and population standard deviations are known : 1)From preliminary rat brain studies, it is believed that there are roughly 100
different neurotransmitter receptors found on postsynaptic nerves. Dr. Sigh
and their lab does not believe that is accurate. The researchers acquired 150
rat brains to perform an analysis on. They found a sample mean of 83.5
receptors and a population standard deviation of 19. Using the 0.01 level of
significance perform a hypothesis test and state the final outcome.