Posted by **Laretta** on Monday, May 3, 2010 at 4:08pm.

Distance travelled in a week by sales staff employed by nationwide security firm is approximately normally distributed with a mean of 200 miles and standard deviation of 48 miles. Estimate the percentage of staff who in a week travel:

1.

a)less than 80 miles

b)more than 250 miles

c)between 100 and 300 miles

2.A reduced mileage rate is to be introduced which is to be set such that approximately 20% of the sales staff will be affected? What is the maximum miles per week that a member of staff could travel before reaching the reduced mileage rate?

3)

Complete this sentence:

"80% of sales staff travel between ____ and ______ miles each week".

## Answer this Question

## Related Questions

- statistics - Distance travelled in a week by sales staff employed by nationwide ...
- statistics - Distance travelled in a week by sales staff employed by nationwide ...
- Math Probability - Super stumped... Help please. The average distance geese fly ...
- statistics - The Graduate Record Exam (GRE) has a combined verbal and ...
- statistics - 16. Based on tests of the Chevrolet Cobalt, engineers have found ...
- Statistics - According to internal testing done by the Get-A-Grip tire company, ...
- statistics - A researcher wishes to estimate the mean weekly wage of the several...
- statistics - given mean distance of 16 miles standard deviation of 8 miles with...
- statistics - An investment broker reports that the yearly returns on common ...
- statistics - A university wants to estimate the average distance that commuter ...