chi_square

Recommendations

Info

ReasonableWhat is a “reasonable” result is subjective and arbitrary.For most work (and for the purposes of this class), a result issaid to not differ significantly from expectations if it couldhappen at least 1 time in 20. That is, if the difference betweenthe observed results and the expected results is small enoughthat it would be seen at least 1 time in 20 over thousands ofexperiments, we “fail to reject” the null hypothesis.
Reasonable For technical reasons, we use “fail to reject” instead of“accept”. “1 time in 20” can be written as a probability value p = 0.05,because 1/20 = 0.05. Another way of putting this. If your experimental results areworse than 95% of all similar results, they get rejected becauseyou may have used an incorrect null hypothesis.
Page 2 and 3: Chi-Square Test A fundamental probl
Page 4 and 5: Goodness of Fit Mendel had no way o
Page 6 and 7: Formula First determine thenumber o
Page 8 and 9: ExampleAs an example, you count F2
Page 10 and 11: Chi-Square DistributionAlthough the
Page 12 and 13: Chi-Square Distribution, p. 3Note t
Page 14 and 15: The Critical Question How do you te
Page 18 and 19: Degrees of Freedom A critical facto
Page 20 and 21: Chi-Square Table
Page 22 and 23: Another Example: from Mendelphenoty
Page 24 and 25: Calculating the Chi-Square ValueUse
Page 26 and 27: Chi-Square Table

chi_square

Create successful ePaper yourself

Delete template?

Save as template?