Question

Eighty eight residents of a city were interviewed during sample survey are classified below, according to their smoking and tea drinking habits. Calculate Yule’* coefficient of Association and comment on its value.

| | Smokers | Non-smokers |
| Tea drinkers | 35 | 33 |
| Non tea drinkers | 8 | 12 |

Answer 1

Let A and B denotes smokers and Tea drinkers, a and a denotes ** and Unmarried. The 2 × 2 contingency table can be prepared as:

Note: In the above table figure in bold letter are adjusted figures. Yule’* Coefficient of Association:

Q = 0.2708

There exists a low degree of positive association between smoking (A) and tea drinking (B)