Question;Question 1. Question;TCO 11) A standard deviation;is a _____.;sample;descriptive statistic;census;inference statistic;Question 2. Question;TCO 11) An arbitrary sample of;pertinent data is a _____.;judgment sample;simple random sample;systematic sample;stratified sample;Question 3. Question;(TCO 11) The sampling method;in which every item in the population has an equal probability of being;selected is called which of the following?;Simple random sampling;Stratified sampling;Systematic sampling;Judgment sampling;Question 4. Question;(TCO 11) Samples are selected;to obtain data about the characteristics of _____.;an experiment;statistic;a population;parameter;Question 5. Question;(TCO 11) A system governed;only by common cause variation is a system that exhibits which of the;following?;It is highly productive;In control;It meets a customer's quality specifications.;It has zero natural variation.;Question 6. Question;(TCO 12) Which of the;following tools is used to identify and isolate causes of a problem?;Shewart diagram;Scatter diagram;Cause-and-effect diagram;Histogram;Question 7. Question;(TCO 12) Another name for a;cause-and-effect diagram is which of the following?;Histogram;Run chart;Check sheet;Fishbone diagram;Question 8. Question;(TCO 12) SPC allows workers to;separate the _____ causes of variation from natural causes.;random;special;catastrophic;surprising;Question 9. Question;(TCO 12) Which of the;following charts is used to monitor the total number of defects per unit when a;constant subgroup size is employed?;S-chart;C-chart;P-chart;U-chart;Question 10. Question;(TCO 12) A bank observes that;most customer complaints come from only a small subset of its total customer;base. This is an example of which of the following?;Clustering analysis;The Pareto principle;Data skewing;The central limit theorem;Question 11. Question;(TCO 12) Determine the sample;standard deviation(s) for the following data: 7, 8, 2, 1, 3, and 5.;s = 2.805;s = 3.266;s = 2.927;s = 3.578;Comments;Question 12. Question;(TCO 12) Six samples of;subgroup size 6 (n=6) were collected. Determine the upper control limit (UCL);for an X-Bar chart if the mean of the sample averages is 4.7 and mean of the;sample ranges is 0.35..;CHART;UCL =;4.86905;UCL = 4.90195;UCL = 4.72250;UCL = 5.05805;Question 13. Question;(TCO 12) Twenty samples of;subgroup size of 5 (n = 5) were collected for a variable measurement. Determine;the upper control limit (UCL) for an R-chart if the mean of the sample ranges;equals 4.4.;TABLE;UCL = 9.3060;UCL = 1.4695;UCL = 11.3256;UCL = 8.8176;TCO 11) Describe how a frequency distribution relates to;process variability.;Question 2. Question;(TCO 11) From the standpoint;of SPC, what does the standard deviation measure?;Question 3. Question;(TCO 11) Describe the purpose;of a cause-and-effect diagram.;Question 4. Question;(TCO 12) Explain the;difference between Type I and Type II errors in the context of a control chart.;Why is it important to give operators control over their processes?;Question 5. Question;(TCO 12) Outline the basic;steps for setting up a control chart to monitor a process and determine its;process capability.
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