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Topic:
[ap-stat] Chi-square work
Replies:
1
Last Post:
Mar 6, 2009 10:13 AM
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Re: [ap-stat] Chi-square work
Posted:
Mar 6, 2009 10:13 AM
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On Mar 6, 2009, at 8:34 AM, Leslie Free wrote:
> Just wondering how much work is required for the chi-square tests. > Is it enough to state the name of the test, the chi-square formula, > then the value of the test statistic, or do they need to set up > some of the terms in the summation formula too? And do they only > need to show the chi-square components if there is a significant > outcome? I have my kids include the chi-square components in their > chart for the goodness of fit test because most of them don't have > the GOF option on their calculators so the values are right there > in list 3 anyway, but for the other two it takes a little more work > to find those and eats up time if they're not needed to describe a > significant outcome. Please advise...
You didn't mention showing the expected values -- that's needed to check the conditions. And, yes, they should show the setup for a few terms of the calculation, but then it's fine to copy the outcome from the calculator. Components are not necessary unless some specific follow-up is required.
- Dave
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