In: Math
PROBLEM:
The average hourly wage of carpenters is normally distributed with a population mean of $62.00 and a population standard deviation of $8.00. Calculate the following:
(a) The proportion of carpenters earning between $48 and $50.
(b) The proportion of carpenters earning more than $67.
(c)The proportion of carpenters earning less than $52.
(d) The 85th percentile.