hat is the probability that the sample mean tax is less than$

8000

? Round the answer to at least four decimal places.

The probability that the sample mean tax is less than$

8000

is

.

(b) What is the probability that the sample mean tax is between$

7400

and$

8000

? Round the answer to at least four decimal places.

The probability that the sample mean tax is between$

7400

and$

8000

is

) Find the60

th

percentile of the sample mean. Round the answer to at least two decimal places.

The60

th

percentile of the sample mean is$

(d) Would it be unusual if the sample mean were less than$

7600

? Round answer to at least four decimal places.

It

(Choose one)

unusual because the probability of the sample mean being less than$

7600

is

(e) Do you think it would be unusual for an individual to pay a tax of less than$

7600

? Explain. Assume the variable is normally distributed. Round the answer to at least four decimal places.

(Choose one)

, because the probability that an individual to pays a tax less than$

7600

is

.

(e) Do you think it would be unusual for an individual to pay a tax of less than$

7600

? Explain. Assume the variable is normally distributed. Round the answer to at least four decimal places.

.