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  3. the following table contains observed frequencies

The following table contains observed frequencies for a sample of 200. Column Variable Row Variable A B C P 20 44 50 Q 30 26 30 Test for independence of...

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Basic Math

The following table contains observed frequencies for a sampleof 200.

Column Variable
Row VariableABC
P204450
Q302630

Test for independence of the row and column variables using a=.05

Compute the value of the  test statistic (to 2decimals).

Answer & Explanation Solved by verified expert
4.0 Ratings (520 Votes)
The following crosstabulation have been provided The row andcolumn total have been calculated and they are shown belowABCTotalP204450114Q30263086Total507080200The expected values are computed in terms of row and columntotals In fact the formula is where Ri corresponds to the    See Answer
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