1. The following table shows the weekly demand data for a new meal combo: To rec
ID: 390859 • Letter: 1
Question
1. The following table shows the weekly demand data for a new meal combo:
To recognize a change in demand patterns, the UCL is _____ and the LCL is _______ . (No decimal points, use "," as a thousands separator. e.g. 6,570)
2.
Top Management of the Royal Scottish Bank monitors the volume of activity at 38 branch banks with control charts. If deposit volume (or any of perhaps a dozen other volume indicators) at a branch falls below the LCL, there is apparently some problem with the branch's market share. If, on the other hand, the volume exceeds the UCL, it means the branch should be considered for expansion or that a new branch might be opened in an adjacent neighborhood.
Given the 10-samples for each of the six months below, prepare an X Chart for the deposit volume (in hundreds of thousands of pounds) for the Kilmarnock branch. Use control limits of plus/minus 3 standard deviations. The average range of the six samples was found to be 85,260 pounds
Avg of 10 days of
deposits (in 100,000 pounds)
The value of X Bar Bar is:
3.
Top Management of the Royal Scottish Bank monitors the volume of activity at 38 branch banks with control charts. If deposit volume (or any of perhaps a dozen other volume indicators) at a branch falls below the LCL, there is apparently some problem with the branch's market share. If, on the other hand, the volume exceeds the UCL, it means the branch should be considered for expansion or that a new branch might be opened in an adjacent neighborhood.
Given the 10-samples for each of the six months below, prepare an X Chart for the deposit volume (in hundreds of thousands of pounds) for the Kilmarnock branch. Use control limits of plus/minus 3 standard deviations. The average range of the six samples was found to be 85,260 pounds
Avg of 10 days of
deposits (in 100,000 pounds)
The value of R Bar is (four decimals):
Explanation / Answer
1. Xbar = 3883.3
Sandard deviation = 301.9
UCL = Xbar + 3sigma = 3883.3 + 3x301.9 = 4788.7
LCL = Xbar - 3sigma = 3883.3-3x301.9 = 2977.9
2. Xbarbar = sum of all values / no of periods = 6.12 /6 =1.02 ( In '100000 pounds)
3. Rbar = sum of values of range / no of periods = 85260
Rbar = 0.8526 ( In '100000 pounds)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.