Question Details

Show that the p-value approach results in the same conclusion 



1.	Some people who bought X-Game gaming systems complained about having received defective systems. The industry standard for such systems has been ninety-eight percent non-defective systems. In a sample of 120 units sold, 6 units were defective.

a.	Compute the proportion of defective items in the sample.
b.	Compute the standard error of  .
c.	At 95% confidence using the critical value approach, test to see if the percentage of defective systems produced by X-Game has exceeded the industry standard.
d.	Show that the p-value approach results in the same conclusion as that of part b.



	2.	Choo Choo Paper Company makes various types of paper products. One of their products is a 30 mils thick paper. In order to ensure that the thickness of the paper meets the 30 mils specification, random cuts of paper are selected and the thickness of each cut is measured. A sample of 256 cuts had a mean thickness of 30.3 mils with a standard deviation of 4 mils.

a.	Compute the standard error of the mean.
b.	At 95% confidence using the critical value approach, test to see if the mean thickness is significantly more than 30 mils.
c.	Show that the p-value approach results in the same conclusion as that of part b.





Math Assignment Help, Math Homework help, Math Study Help, Math Course Help