1.Salaries for entry level employees working in a certain industry are normally

ID: 3206099 • Letter: 1

Question

1.Salaries for entry level employees working in a certain industry are normally distributed with a mean of $38405 and a standard deviation of $1732.

What proportion workers in this industry have entry level salaries greater than $40,000?

Round your answer to 4 decimal places.

2.Salaries for entry level employees working in a certain industry are normally distributed with a mean of $38326 and a standard deviation of $1891.

What proportion workers in this industry have entry level salaries between $36,000 and $40,000?

Round your answer to 4 decimal places.

3.Salaries for entry level employees working in a certain industry are normally distributed with a mean of $37892 and a standard deviation of $1593.

Find the percentile P60 for entry level salaries of employees working in this industry.

Round your answer to 2 decimal places.

1. mean = $38405 sd= $1732

P(x>40,000)=P(z>(40000-38405)/1732)=P(z>0.92)

1-P(z<0.92)

from normal table, 1-0.8212=0.1788

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.