Wednesday

October 22, 2014

October 22, 2014

Posted by **Johnny** on Friday, January 30, 2009 at 9:36pm.

Product Number - Number of defects

1 - 3

2 - 3

3 - 6

4 - 5

5 - 3

6 - 5

7 - 2

8 - 2

9 - 3

10 - 4

11 - 6

a. Determine the upper and lower control limits.

b. Discuss the chart you have plotted. What conclusions and recommendations do you make from the chart and the data?

- Statistics -
**MathGuru**, Sunday, February 1, 2009 at 10:38amHere's what you will need to answer this question:

Lower limits = mean - 3(sd/√n)

Upper limits = mean + 3(sd/√n)

sd = standard deviation

n = sample size

You will need to calculate the mean and standard deviation from the data given. Once you have those values, you can then determine the lower and upper limits.

I hope this will help get you started.

**Answer this Question**

**Related Questions**

statistics - A consumer magazine has contacted a simple random sample of 33 ...

statistics - Can someone provide me with some assistance in answering this ...

busi/stats - The Quality Assurance Department selected a sample of 12 printed ...

stats - The Quality Assurance Department selected a sample of 12 printed ...

statistics - Which of the following situations can be best modeled using a ...

STATISTICS - The manager of an accounting office is studying the problem of ...

Statistics - University Hospital has been concerned with the number of errors ...

statistics - Consider a 95% confidence interval for a population mean ...

statistics - Consider a 95% confidence interval for a population mean ...

Math - A process for producing electronic circuits has achieved very high yield ...