Chapter 26

Why is good graphing so important in Six Sigma?

a. It lets you get more on a page.
b. It makes the information easier to read.
c. It makes the analysis part more efficient.
d. It makes the final document look nicer.

What is the primary disadvantage of using Excel for Six Sigma analysis?

a. Excel's calculation capabilities are more limited.
b. Excel wastes space.
c. It's more difficult to create good columns.
d. Excel doesn't have the same good typefaces.

How many graphic analysis options are available in Minitab?

a. 10
b. 18
c. 20
d. 5

What plotting type is best when you begin a regression analysis?

a. A pie chart
b. A histograph
c. A scatter plot
d. It doesn't matter. Whatever does the job.

What does it indicate when values are shown close together on a graph?

a. You should try to create the graph again.
b. It has no meaning.
c. There is an error in the data.
d. There is a good correlation.

What is the primary benefit of plotting dots in a scatter diagram?

a. There is no benefit. It should be easy to understand.
b. It makes the graph more attractive.
c. It makes printing easier.
d. It makes correlation easier to see.

What is the primary benefit of a histogram?

a. A histogram make It easier to understand how data is distributed
b. A histogram is a good all-purpose graph.
c. Color makes them easy to read

What is the benefit of using a curve over a histogram?

a. It's a more efficient use of color.
b. It proves that there are different ways to show the same data.
c. It makes the shape of data more readily apparent.
d. It is easier to show errors in data.

What is the best use of a dotplot?

a. There is no benefit.
b. It makes the graph more attractive.
c. It makes the graph easier to use.
d. A dotplot is good to use in smaller samples.

What is a benefit of Minitab over Excel in creating bar charts?

a. Minitab doesn't force you to recalculate data.
b. It's easier to copy data.
c. None. One is as good as the other.
d. You can create graphs in multiple colors.

In dataflow, what is a primary benefit of Minitab?

a. It uses lines to show differences in data.
b. It uses dots to show differences in data.
c. It uses color to show differences in data.
d. Minitab makes it easy to order data, high to low, and vice versa.

What is a run chart?

a. A run chart is a graphical representation of data over time.
b. There is no advantage of a run chart.
c. A run chart is the same as a histogram.
d. A run chart shows data at one particular point in time.

Do you always need to translate graphed data into numbers to use it?

a. Yes. Numbers show differences in data.
b. Yes. Otherwise it can't be tracked.
c. Yes. This is one of the benefits of analysis.
d. Not necessarily. As long as the data can be tracke

What is a primary benefit of Gage R & R?

a. It can help you compare analysis methods.
b. It can give you more information about your data.
c. It can show you where sampling errors are
d. Gage R & R can help to determine whether a measurement method is accurate.

Chapter 26

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