A cigarette company interested in the effect of gender on the type of cigarettes smoked and has collected the following
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A cigarette company interested in the effect of gender on the type of cigarettes smoked and has collected the following
company interested in the effect of gender on the type of cigarettes smoked and has collected the following data from a random sample of 150 persons: Cigarette Male Female Total A 30 25 55 B 15 40 55 С 10 30 40 Total 55 95 150 Test whether the types of cigarette and sex are independent. !
A cigarette