test a claim and yates law effects

timer Asked: Aug 11th, 2015

Question description

A survey conducted in a small town yielded the results shown in the table.

men women
Plan to vote105    87
Do not plan to vote312    246

i)  Test the claim that the intention to vote in the next presidential election is independent of the gender of the person being surveyed.  Use a 0.05 significance level.
ii)  Using Yates' correction, replace (O−E)2Ewith (O−E−0.5)2E and repeat the test.  What effect does Yates' correction have on the value of the test statistic?  

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