Concept explainers
a
Interpretation:
Effect on optimal value of n and k is to be determined if
Concept Introduction:
Probability is the likelihood of an event to occur.. It ranges between 0 to 1. O implies no chance of occurance while 1 implies 100% chance of occurance.
b
Interpretation:
Effect on optimal value of n and k is to be determined if
Concept Introduction:
Probability Distribution Function is a likelihood of an event to occur for discrete random variables. Graphically, it shows how likely variables will fall under the probability area.
Exponential distribution is a probabilitydistribution which finds probability of an event to occur between independent constant rate and continous rate.
c
Interpretation:
Effect on optimal value of n and k is to be determined if
Concept Introduction:
Probability Distribution Function is a likelihood of an event to occur for discrete random variables. Graphically, it shows how likely variables will fall under the probability area.
Exponential distribution is a probabilitydistribution which finds probability of an event to occur between independent constant rate and continous rate.
Interpretation:
Effect on optimal value of n and k is to be determined if
Concept Introduction:
Probability Distribution Function is a likelihood of an event to occur for discrete random variables. Graphically, it shows how likely variables will fall under the probability area.
Exponential distribution is a probabilitydistribution which finds probability of an event to occur between independent constant rate and continous rate.
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Production and Operations Analysis, Seventh Edition
- Give typing answer with explanation and conclusion Which of the following is the key objective of a six sigma project? A. Developing detailed control charts for critical processes' B. Reducing variation in critical processes' C. Reducing investment costs while improving output quality' D. Improve Efficiency at minimal cost'arrow_forwardEach day, a FedEx competitor processes approximately 50,000 shipments. Suppose that they use the same Service Quality Index as FedEx and identified the following numbers of errors during a 5-day week (see the "FedEx: Measuring Service Performance" box). These values are hypothetical and do not reflect any real company’s actual performance. Description Weight Number of Errors Complaints reopened 3 145 Damaged packages 10 17 International 1 109 Invoice adjustments 1 284 Late pickup stops 3 207 Lost packages 10 4 Missed proof of delivery 1 28 Right date late 1 752 Traces 3 115 Wrong day late 5 11 Compute the Service Quality Indicator by finding the weighted sum of errors as a percentage of total shipments. Do not round intermediate calculations. Round your answer to three decimal places. Service Quality Indicator (SQI): %arrow_forward. Inspection results of video-of-the-month shipments to customers for 25 consecutive days are given in the following table. What central line and control limits should be established and posted if it is assumed that any out of-control points have assignable causes? The number of inspections each day is constant and equals 1750. Date Nonconforming Date Nonconforming July 6 47 July 23 37 7 42 26 39 8 48 27 51 9 58 28 44 12 32 29 61 13 38 30 48 14 53 Aug 2 56 15 68 3 48 16 45 4 40 19 37 5 47 20 57 6 25 21 38 9 35 22 53arrow_forward
- All of the following are ways to improve quality except: a. improving products and services based on customer demands. b. increasing cycle time. c. simplifying the production process. d. improving production precision. ________ is the most popular service provided by the Internet. a. An intranet. b. instant messaging and emails. c. The World Wide Web. d. WML.arrow_forwardAs part of an insurance company’s training program, participants learn how to conduct an analysis of clients’ insurability. The goal is to have participants achieve a time in the range of 30 to 45 minutes. Test results for three participants were the following: Armand, a mean of 36.0 minutes and a standard deviation of 3.0 minutes; Jerry, a mean of 34.0 minutes and a standard deviation of 2.0 minutes; and Melissa, a mean of 37.5 minutes and a standard deviation of 1.7 minutes. a.Compute process capability for the participants and determine whether each is capable. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Melissa ? Cp what is itarrow_forwardAs part of an insurance company’s training program, participants learn how to conduct an analysis of clients’ insurability. The goal is to have participants achieve a time in the range of 30 to 45 minutes. Test results for three participants were the following: Armand, a mean of 36.0 minutes and a standard deviation of 2.0 minutes; Jerry, a mean of 37.0 minutes and a standard deviation of 2.0 minutes; and Melissa, a mean of 37.5 minutes and a standard deviation of 2.6 minutes. a.Compute process capability for the participants and determine whether each is capable, given 4-sigma quality standards. (Do not round intermediate calculations. Round your answers to 2 decimal places.)arrow_forward
- Ettlie Engineering has a new catalyst injection system for your countertop production line. Your process engineering departmenthas conducted experiments and determined that the mean is 8.01 grams with a standard deviation of .03. Your specificationsare: m = 8.0 and s = .04, which means an upper specification limit of 8.12 [ = 8.0 + 3(.04)] and a lower specification limit of7.88 [= 8.0 - 3(.04)].What is the Cpk performance of the injection system?arrow_forwardA research firm has been asked to determine the proportion of all restaurants in the state of Ohio that serve alcoholic beverages. The firm wants to be 98% confident of its results but has no idea of what the actual proportion is. The firm would like to report an error of no more than 0.07. How large a sample should it take? Appendix A Statistical Tables (Round answer to 0 decimal places, e.g. 5,125.)Sample size = enter a sample size rounded to 0 decimal placesarrow_forwardBurger Doodle is a fast-food restaurant that processes anaverage of 680 food orders each day. The average cost of each order is $6.15. Four percent of the orders are incor-rect, and only 10% of the defective orders can be corrected with additional food items at an average cost of $1.75. Theremaining defective orders have to be thrown out.a. Compute the average product cost.b. In order to reduce the number of wrong orders,Burger Doodle is going to invest in a computerizedordering and cash register system. The cost of thesystem will increase the average order cost by $0.05and will reduce defective orders to 1%. What is theannual net cost effect of this quality-improvementinitiative?c. What other indirect effects on quality might be realizedby the new computerized order system?arrow_forward
- Assume the specifications for a part (in inches) are 8.00 ± 0.37, and the Taguchi loss function is estimated to be L(x) = 8,000(x − T)2. Use the Excel template Taguchi to determine the estimated loss if the quality characteristic under study takes on a value of 8.54 inches. Round your answer to the nearest cent.arrow_forwardshort answers What are the three fundamental questions to the Plan-Do-Study-Act model and why are they necessary in establishing quality improvement? When an investigator or team establishes a goal, how would a performance metric/s indicate an improvement towards the goal? Provide an example of a performance metric/s in your explanation of noted improvement towards the goal. Of the various quality improvement models provided in your Melnyk & Overholt text, which do you prefer and why. Be sure to explain how the model may assist you when carrying out the activities for your DNP scholarly project. Compare and contrast, two of the quality improvement Models, the IOWA Model of Evidence-Based Practice and the John Hopkins Evidence-Based Practice Model.arrow_forwardProduction. Consider again the task of the quality control inspectors in Exercise 22. a) In this context, what is meant by the power of the test the inspectors conduct? b) They are currently testing 5 items each hour. Someone has proposed that they test 10 instead. What are the advantages and disadvantages of such a change? c) Their test currently uses a 5% level of significance. What are the advantages and disadvantages of changing to an alpha level of 1%? d) Suppose that, as a day passes, one of the machines on the assembly line produces more and more items that are defective. How will this affect the power of the test? Exercise 22 Quality control. Production managers on an assembly line must monitor the output to be sure that the level of defective products remains small. They periodically inspect a random sample of the items produced. If they find a significant increase in the proportion of items that must be rejected, they will halt the assembly process until the…arrow_forward
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