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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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doggerfresh doggerfresh
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A year ago
When you are testing whether two population means of two normally distributed populations differ and the population variances are both unknown but unequal, thet test statistics will usually have a non-integer number of degrees of freedomv. In this case, you should:


▸

round down to the previous integer.



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round up to the next integer.



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assume that the population variances are equal and usev=n1+n2– 2.



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change the sample sizes until the number of degrees of freedom is an integer.

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
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astroasisastroasis
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doggerfresh Author
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A year ago
Good timing, thanks!
julymontalvo
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Yesterday
Just got PERFECT on my quiz
spaghetti
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2 hours ago
Helped a lot
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