Saturday

April 18, 2015

April 18, 2015

Posted by **Jason L** on Friday, March 2, 2007 at 8:31am.

You can use z-scores and the z-score formula to compute the number of hours.

Formula: z = (x - mean)/sd -->sd = standard deviation

You are given the mean and standard deviation. You can find z using a z-table representing "no more than 6% risk" of having to pay up. Once you have that z-score, all you will need to do is solve the above equation for x.

I hope this will help get you started.

**Answer this Question**

**Related Questions**

Statistics - A building contractor claims that they can renovate a 200 sq foot ...

statistics - The mean length of a work week for the population of workers was ...

statistics/mean and standard deviation - find the mean and standard deviation in...

Statistics - In an advertisement, a shoe store claims that its mean online ...

statistics - Let's pretend the Work variable is normally distributed, with a ...

statistics - Assume we draw a simple random sample from a population having a ...

math - Here's my question: Determine if each system has one, two, or no ...

statistic - Let's assume there are 3 people in Room A and another 3 people in ...

statistics - A Social service agency plans to conduct a survey to determine the ...

Statistics - Let's pretend the Work variable is normally distributed, with a ...