A consulting firm specializing in compensation has informed you that the average starting salary for an Accountant is $49,700 with a standard deviation of $2,500.Assuming that the salaries follow a normal distribution, determine the following.

1. What is the probability of a starting salary between $45,000 and $55,000?
2. What is the probability a starting salary exceeds $53,000?
3. What percent of a starting salary between $52,500 and $55,000?
4. The top 10% earn more than what dollar amount?.

b.

c.

d.

question 2.

A survey of an urban university showed that 900 of 1,500 students sampled supported a fee increase to fund improvements to the student recreation center. Using the 95% level of confidence, what is the confidence interval for the population proportion?Enter answer as a decimal rounded to three decimal places.

Lower Limit....................

Upper Limit................