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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

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BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

Explain why a very small value for an expected frequency can distort the results of a chi-square test.

To determine
Why a very small value of an expected frequency can distort the results of a chi-square test.

Explanation

Small value of expected frequency raises the value of χ2 and can disturb the result of the test.

Suppose in a chi-square test the value of fe=1 and fo=5 are provided. (That is, 4 point difference between observed and expected frequencies)

That is,

(fofe)2fe=(51)21=161=16

Now, let’s assume fe=10 and

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