Let p1 and p2 be the respective proportions of women with nutritional anemia in each of two developing countries

Let

p1

and

p2

be the respective proportions of women with nutritional anemia in each of two developing countries. If a random sample of

225

women from the first country yielded

54

women with nutritional anemia, and an independently chosen, random sample of

325

women from the second country yielded

136

women with nutritional anemia, find a

95%

confidence interval for

−p1p2

. Then find the lower limit and upper limit of the

95%

confidence interval.

Carry your intermediate computations to at least three decimal places. Round your responses to at least three decimal places. (If necessary, consult a list of formulas.)