Thursday

October 2, 2014

October 2, 2014

Posted by **Rhea** on Wednesday, February 27, 2013 at 10:51pm.

Complete solutions and illustrations are required.

1.The average annual salary for all U.S. teachers is $29,863. Assume that the distribution is normal and the standard deviation is $5,200.

a.Find the probability that a randomly selected teacher earns at least $35,000 a year.

b.What is the probability that the mean for a sample of 80 teachers’ salaries is greater than $30,000?

**Answer this Question**

**Related Questions**

Sampling Distribution - Sampling Distribution Complete solutions and ...

Sampling Distribution - Sampling Distribution Complete solutions and ...

Sampling Distribution - Sampling Distribution Complete solutions and ...

Math (Statistic) - Considered the sampling distribution of a sample mean ...

Sampling Distribution - Sampling Distribution Complete solutions and ...

Statistics - For an IQ test, we know the population n=100 and the ox = 16. We ...

Psychology - For an IQ test, we know the population _ 5 100 and the _X 5 16. We...

PSY - For an IQ test, we know the population _ 5 100 and the _X 5 16. We are ...

Statistics - Please help me with this question: For an IQ test, we know the ...

Statistics - Trying to finish an assignment: What happens to the power of the z ...