Thursday
June 20, 2013

Posts by Stuart

Total # Posts: 45

Statistics
Much of the emphasis in TQM is an understanding and reducing variation within the process through which the product is produced, and samples of output are used in reaching inferences about the stability of the process. I choose True. True False

Statistics
Much of the emphasis in TQM is an understanding and reducing variation within the process through which the product is produced, and samples of output are used in reaching inferences about the stability of the process. I choose True. True False

Statistics
When no point lies outside the control limits of a chart, we conclude that: A) variation in the process is caused by assignable causes and there is enough evidence to infer that the process is in statistical control. B) variation in the process is caused by chance and there is...

Statistics
If a point is more than 3 sigmas away from the centerline, or if two out of three consecutive points are on the same side of the centerline and more than 2 sigmas away from it, the process is deemed to be in control. True False

Statisitics
When the purpose of sampling is to detect when a process becomes too variable, the chart of choice will be an R chart. I picked true on this? True False

Statistics
When the purpose of sampling is to detect when a process becomes too variable, the chart of choice will be an R chart. True False I picked True.

Statistics
A multiple regression model has the form: As x2 increases by 1 unit, holding constant x1, then the value of y will increase by: ^ is over y = 5.25 + 2.5x1 + 4x^2 A) 2.5 units B) 7.75 unit C) 4 units on average D) 11.75 units on average

A chi-square test for independence with 8 degrees of freedom results in a test statistic of 18.21. Using the chi-square table, the most accurate statement that can be made about the p-value for this test is that: A) p-value < 0.01 B) 0.025 > p-value > 0.01 C) 0.05 >...