Industry Headlines

BRAIN TEASER OF THE MONTH

March 1, 2005
/ Print / Reprints /
ShareMore
/ Text Size+
enews

c) is the correct response.

Like p-charts, u-charts record attributes data. But the distinction lies in the difference between go/no go situations, where a product either has a defect or it does not, and nonconforming products, which may have several defects in a single product. P-charts collect data relating to the proportion of rejected containers, while u-charts give information about how many individual defects are recorded in samples.

For example, manufactured parts that are the wrong dimension and tested with a go/no-go approach should be charted on a p-chart. Ice cream, on the other hand, might have too many chocolate chips, a sloppy label, and insufficient fill-all in the same container. Instead of recording the ice cream container as good or bad, more useful information would be gathered by identifying the kinds of defects in each container. This could be charted with a u-chart, and future analysis by means of Pareto charts.

Did you enjoy this article? Click here to subscribe to Quality Magazine. 

You must login or register in order to post a comment.

Multimedia

Videos

Podcasts

 In honor of World Quality Month, we spoke to James Rooney, ASQ Past Chairman of the Board of Directors 2013, for his take on quality around the world.
For more information, read the ASQ Speaking of Quality column.
More Podcasts

Quality Magazine

CoverImage

2014 September

Check out the September 2014 edition of Quality Magazine for features!

Table Of Contents Subscribe

The Skills Gap

What is the key to solving the so-called skills gap in the quality industry?
View Results Poll Archive

Clear Seas Research

qcast_ClearSeas_logo.gifWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

eNewsletters

STAY CONNECTED

facebook_40.png twitter_40px.png  youtube_40px.pnglinkedin_40px.png