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Author Question: Scatter diagrams can be used for either quantitative or qualitative data. Indicate whether the ... (Read 78 times)

PhilipSeeMore

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on: Jun 24, 2018
Scatter diagrams can be used for either quantitative or qualitative data.
 
  Indicate whether the statement is true or false

Question 2

Briefly discuss the advantages and disadvantages of using a variable sample size for attributes data.
 
  What will be an ideal response?
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javimendoza7

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Reply #1 on: Jun 24, 2018
Answer to Question 1

FALSE

Answer to Question 2

In many applications, it is desirable to use all data available rather than just data specifically collected as a sample. Because the sample size varies, the standard deviation can be calculated using the average sample size as long as the individual sample sizes do not vary by more than 25 of the average sample size. When using this approach, note that because control limits are approximated using the average sample size, points that are actually out of control may not appear so on the chart and nonrandom patterns may be difficult to interpret.


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