Saturday

August 2, 2014

August 2, 2014

Posted by **Michael** on Sunday, October 28, 2012 at 4:22pm.

(A) What percentage of Americans earn below $19,000?

(B) What percentage of Americans earn above $40,000?

- Math -
**Michael**, Sunday, October 28, 2012 at 4:46pmThis is what I am getting so maybe someone can tell me if I am right and if not where am I going wrong.

Z = (score-mean)/SD

A. Z(19,000)= (19,000-30,500)/6250= -1.84

P(x<19,000)=P(z< -1.84) = 23.40 23%

B. z(40,000) = (40,000-30,500)/6250= 1.52

P(x>40,000) = P (z> 1.52) = + 23.40 23%

**Related Questions**

math - Assume that the average annual salary for a worker in the United States ...

math - Assume that the average annual salary for a worker in the United States ...

Statistics - Assume that the average annual salary for a worker in the United ...

Math check and help - WageWeb is a service of HRPDI and provides compensation ...

math - WageWeb is a service of HRPDI and provides compensation information on ...

statistics - According to a website about salaries, the national average salary ...

statistic - Assume that the salaries of elementary school teachers in the United...

Statistics - The average annual salary of employees at Wintertime Sports was $28...

math - Assume that the salaries of elementary school teachers in the United ...

statistic - an employment information service reports that the mean annual ...