Objective: Determine process capability
The sandwich shopâ€^TMs goal I that every sandwich can be completed in
less than 1.5 minutes using the following 20 data times:
1.5364
1.5892
1.4823
1.5610
1.5468
1.5021
1.5065
1.5002
1.5501
1.5423
1.4322
1.5732
1.5923
1.5567
1.5022
1.5345
1.4822
1.4922
1.6004
1.5178

Evaluate the shopâ€^TMs ability to meet the 1.5 minute goal using the following capability measures:

1. What is the Cp? N/A 1.5 becomes the USL as a single sided
2. What is the Cpk?
3. What does the particular Cpk say about the process that other Cpkâ€^TMs may not?
4. What is the Pp? N/A Same reason as Question 1
5. What is the Ppk?

Feedback: The USL is given as 1.5 minutes (you don't compute it). There is no LSL (you can't use 0, since it is a hard limit). Thus you are left with just one spec, an USL of 1.5 minutes. This means you can't compute Cp and Pp (since they require two-sided spec limits).
Secondly, the Cpk is computed using the process standard deviation and only the USL (sprocess is mR-bar/d2 or 0.053/1.128). Next the Ppk is found using the sample standard deviation instead of the process standard deviation and only the USL. 

Posted Date: 7/12/2012 9:31:34 PM | Location : United States

Ask an Expert

Related Discussions:- Process capability questions, Assignment Help, Ask Question on Process capability questions, Get Answer, Expert's Help, Process capability questions Discussions

Write discussion on Process capability questions
Your posts are moderated

Write your message here..

Related Questions

Estimate the proportion of lake trout with lamprey scars, In a certain lake... In a certain lake a limnologist wishes to estimate the proportion of lake trout with lamprey scars. (a) How large of a random sample should be taken if the limnologist has no pr

Assignment, about 10 questions about 10 questions

Vital statistics, various types of measure of fertility various types of measure of fertility

Correlation and regression, The square of the sample correlation coefficien... The square of the sample correlation coefficient is typically denoted r2 and called the coefficient of determination. It estimates the fraction of the variance in Y that is explain

.two functions of accounting, Two functions of Accounting. Accounting Pu... Two functions of Accounting. Accounting Purchase only:  In the guides of Records only a transaction which is relevant to some cash value can be registered.  Posting: The Expl

Jurnal entry, Depreciation on the company''s equipment for 2011 is computed... Depreciation on the company''s equipment for 2011 is computed to be $16,000.

Regression Analysis, I have a regression analysis assignment using minicab,... I have a regression analysis assignment using minicab, but I am not sue how to do with my current data set?

Karl pearson''''s coefficient, some examples of karl coefficient. some examples of karl coefficient.

Peanuts and cost accounting, EFF EX: Joe, you said you put in these peanuts... EFF EX: Joe, you said you put in these peanuts because some people ask for them, but do you realise what this rack of peanuts is costing you? JOE: It ain''t gonna cost. ''sgonna be

Estimate the population mean flying time for the pilots, The mean number of... The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month (The Wall Street Journal, February 25, 2003). Assume that this mean was based on ac