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Exam 15: A: Advanced Methods for Project Scheduling

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Question 1

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A packaging plant is running a filling process where packages are filled with 24 oz.+/- 0.08 oz.A capability study reveals that the process mean is 24 oz.with a standard deviation of 0.02 oz.What is the capability of the packaging line?

A) 0.67
B) 1.33
C) 0.50
D) 1.50

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Question 2

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The two types of data involved in quality control are:

A) Assignable factors and random factors.
B) Variables and attributes.
C) Random measurements and 100 percent measurements.
D) Accuracy and precision.

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Question 3

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Which of the following conclusions does the p data shown below support? P = .10 UCL = 0.2022 LCL = 0.-0154

Measuring quality in brief customer interactions is particularly difficult,as each customer's interaction with a company employee has the potential to be personal and unique.Some service firms have attempted to measure the effectiveness of these transient customer interactions using which of the following scales?

We are experiencing a problem where the output of a process keeps shifting over time.If we were to use a histogram to collect and display the resulting data,what type of shape would it most likely display?

Which of the following categories of causes would be most appropriate for a Marriott (an international hotel chain) or McDonalds (an international fast food chain) or the local hair stylist?

You have been given the following sample information that has been drawn from the last sample taken: Mean of the sample: 13.67 Lower control limit for the range: 0 Upper control limit for the range: 10.6 Observations: 13,12,8,10,11,16,17,8,17,18,20,14 Which of the following conclusions does this data support?

Sample means and ranges were obtained for five samples of 10 units per sample from a production process.Assume the process was considered to be in control during the period these samples were collected.The results are as follows: What is the central line of the X chart for this process

Under what conditions would we be required to recalculate the parameters for an X-bar-R chart?

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm,respectively.What is the process capability as measured by C_p?

To determine whether two variables are related to each other you would use:

Effective quality management requires:

Which of the following tools is most appropriate when we are interested in determining if a process that was generating attribute-type data (pass/fail,good/bad) was under control?

Sample means and ranges were obtained for five samples of 10 units per sample from a production process.Assume the process was considered to be in control during the period these samples were collected.The results are as follows: LCL for the three sigma X chart for the process is approximately (for a sample size of 10,A2 = 0.31) :

Which of the following types of control charts would be most appropriate if the data that we are dealing with is binary in nature (good/bad,pass/fail,accept/reject) ?

Forty samples of 100 are taken,with the total number of defective units being 150.What is the upper control limit of the three sigma (z = 3) p-chart?

Which of the following quality improvement tools is not a particularly good brainstorming tool?

A firm has an existing process that it would like to use for producing a part it will sell to an industrial customer.The customer requires that defective (out of specification) parts be kept to 3,000 parts per million (three-tenths of 1 percent) or less.A process capability study done on the process revealed that it has a process capability index (C_pk) of 1.00 for this part.What should the firm conclude from the study?

Which of the following conclusions does the p data shown below support? P = .10 UCL = 0.2022 LCL = 0.-0154

You are given the following data for taillight assemblies: Management has decided to carry out a Pareto analysis focusing on problem areas.Which of the following conclusions does the Pareto analysis support?