Question: A study among the Pima Indians of Arizona investigated the relationship between a mother's diabetic status and the appearance of birth defects in her children. The results appear in the two-way table below
(a) Fill in the row and column totals in the margins of the table.
(b) Compute (in percents) the conditional distributions of birth defects for each diabetic status.
(c) Display the conditional distributions in a graph. Don't forget to label your graph completely.
(d) Do these data give evidence of an association between diabetic status and birth defects? Justify your answer.