tion o 0 out Of /.6923 po The price of an LG cellphone is normally distributed with a mean price of $80 with a standard deviation of $10. If a sample of n=100 cellphones, has an average of $81.5. Use hypothesis testing, with Ho the assumption that the difference between the mean and sample average is not statistically different, use a significant level of a = 0.05. (1-side, use > or