Eighty eight residents of a city, who were interviewed in a city are classified as male or female
Eighty eight residents of a city, who were interviewed in a city are classified as male or female
and also as drinkers or non-drinkers of tea. For testing association between sex and drinking
of tea, the test statistic follows:
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Correct answer: (D) Chi square distribution with 1 degree of freedom
Explanation
A 2 x 2 contingency table (male/female vs drinker/non-drinker) is tested with chi-square, with (2 - 1)(2 - 1) = 1 degree of freedom.