Chi-Square Test for Independence The following data related to the number of children classified according to the type of feeding and nature of teeth. Do the information provide sufficient evidence to conclude that type of feeding and nature of teeth are dependent? Use chi square test at 5% level of
Chi-Square Test for Independence
The following data related to the number of children classified according to the type of feeding and nature of teeth. Do the information provide sufficient evidence to conclude that type of feeding and nature of teeth are dependent? Use chi square test at 5% level of significance.
$$\begin{array}{|c|c|c|} \hline \text{Type of feed} & \text{Normal} & \text{Defective} \ \hline \text{Breast} & 18 & 12 \ \text{Bottle} & 2 & 13 \ \hline \end{array}$$
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Type of Feed Normal Defective Row Total ------------ Breast 18 12 30 Bottle 2 13 15 Column Total 20 25 N = 45 --- - $H0$: Type of feeding and nature of teeth are independent. - $H1$: Type of feeding and nature of teeth are dependent. - $\alpha = 0.05$ --- $$E{ij} = \frac{Ri \times Cj}{N}$$ $$E{11...