1. Normal Distribution:
The amount of income per month earned by an auditor with 10 years of experience is a normally distributed random variable with mean $3500 and standard deviation $240.
a. Create the normal distribution graph for this problem in Excel.
b. What percentage of auditors with 10 years of experience earn more than $4000 per month? (note: Excel has several functions for normal distributions)
c. What percentage of auditors with 10 years of experience earn less than $3200 per month?
d. What is the probability that a randomly selected auditor earns between $3250 and $3800 per month?
e. What monthly income defines the top 10% of auditors with 10 years of experience?