In a study of 88 births to women with a history of thrombocytopenia (Samuels et al. 1990), the same condition was recorded in 20% of babies (95% confidence interval 13% to 30%, exact method): (a)...

In a study of 88 births to women with a history of thrombocytopenia (Samuels et al. 1990), the same condition was recorded in 20% of babies (95% confidence interval 13% to 30%, exact method):

(a) Another sample of the same size will show a rate of thrombocytopenia between 13% and 30%;

(b) 95% of such women have a probability of between 13% and 30% of having a baby with thrombocytopenia;

(c) It is estimated that between 13% and 30% of births to such women in the area would show thrombocytopenia;

(d) If the sample were increased to 880 births, the 95% confidence interval would be narrower;

(e) It would be impossible to get these data if the rate for all women was 10%.