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

Sampling Distribution

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 ...
- Math (Statistic) - Considered the sampling distribution of a sample mean ...
- Sampling Distribution - Sampling Distribution Complete solutions and ...
- Sampling Distribution - Sampling Distribution Complete solutions and ...
- Sampling Distribution - Sampling Distribution Complete solutions and ...
- statistics - An SRS of size n is taken from a large population whose ...
- statistics - For an IQ test, we know the population mean = 100 and the standard ...
- Statistics - The t distribution should be used when ___. the sampling population...
- Statistics - Trying to finish an assignment: What happens to the power of the z ...
- Math- Statistics - A random sample of size 36 is to be selected from a ...