Draw x-bar process control chart and calculate probability , Financial Accounting

Kevin Murtuagh, manager of an national reservation service for a nationwide chain of luxury hotels, is concerned about productivity of his operation.  Analysis of recent historical data shows the call center seems to be averaging about five minutes to process a regular reservation call with a per call standard deviation of forty seconds. 

  1. Suppose that every day Kevin randomly samples 25 calls for their length in minutes and computes the average.  Draw the x-bar process control chart with 3-sigma control limits.  On three consecutive days Kevin observes averages of 4.72, 5.20 and 5.03 minutes respectively.  Should he be concerned?  Explain.
  2. Senior management has determined that call processing time should between 4 minutes, 15 seconds and 4 minutes, 45 seconds.  What is the probability that the current performance meets this standard? 
  3. Given the information from senior management in part b, what is the current process capability?
  4. Given your answer to part c, what should Kevin Murtaugh do in order to ensure that the process is 6-sigma qualified?  Explain.

 

Posted Date: 2/16/2013 1:49:52 AM | Location : United States







Related Discussions:- Draw x-bar process control chart and calculate probability , Assignment Help, Ask Question on Draw x-bar process control chart and calculate probability , Get Answer, Expert's Help, Draw x-bar process control chart and calculate probability Discussions

Write discussion on Draw x-bar process control chart and calculate probability
Your posts are moderated
Related Questions
During it's first year of operations, Rosa Corp has these transactions pertaining to its common stock. Jan. 10 Issued 30,000 shares for cash at $5 per share July 1 Issued 60,000 sh

The book of Deven Verma could not be tallied. The accountant transferred the difference of Rs. 1,270 in the suspense account on the debit side. The following mistakes were found la

PRESUMPTION OF SURVIVORSHIP Where two or more persons have died in circumstances rendering it uncertain which of them survived the other or others, the deaths shall, for all pu


Division of the trust The safeguards consist in the division of the trust funds into portions.  Before this division takes place, the investments are revalued in order to deter


#questBackground: The SEC set up the Work Plan which sets forth specific areas and factors to consider before potentially transitioning our current financial reporting system for U

For getting the EOQ formula we shall use the subsequent symbols: U = annual usage/demand Q = quantity ordered F = cost per order C = per cent carrying cost P  = pric

Question : The subsequent data pertain to a shop. The owner has made following sales forecasts for the first 5 months of the coming year.

An investor holds a bullish view for the equity market over the next twelve months and wishes to recalibrate his portfolio to reflect this view. The investor's portfolio consists o