A researcher studied iron-deficiency anemia in women in each of two developing countries. Differences in the dietary habits between the two countries led the researcher to believe that anemia is less prevalent anong women in the first country than among women in the second country. A random sample of 2000 women from the first country yielded 488 women with anemia, and an independently chosen, random sample of 1700 women from the second country yielded 437 women with anemia. Based on the study can we conclude, at the 0.05 level of significance, that the proportion p, of women with anemia in the first country is less than the proportion p, of women with anemia in the second country? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the parts below. (If necessary, consult a list of formulas.) (a) State the null hypothesis H, and the alternative hypothesis H1. H, : p1 = 2 H, :0 On (b) Determine the type of test statistic to use. Degrees of freedom: ] OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) -0.914 (d) Find the p-value. (Round to three or more decimal places.) (e) Can we conclude that the proportion of women with anemia in the first country is less than the proportion of women with anemia in the second country? O Yes ONo
A researcher studied iron-deficiency anemia in women in each of two developing countries. Differences in the dietary habits between the two countries led the researcher to believe that anemia is less prevalent anong women in the first country than among women in the second country. A random sample of 2000 women from the first country yielded 488 women with anemia, and an independently chosen, random sample of 1700 women from the second country yielded 437 women with anemia. Based on the study can we conclude, at the 0.05 level of significance, that the proportion p, of women with anemia in the first country is less than the proportion p, of women with anemia in the second country? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the parts below. (If necessary, consult a list of formulas.) (a) State the null hypothesis H, and the alternative hypothesis H1. H, : p1 = 2 H, :0 On (b) Determine the type of test statistic to use. Degrees of freedom: ] OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) -0.914 (d) Find the p-value. (Round to three or more decimal places.) (e) Can we conclude that the proportion of women with anemia in the first country is less than the proportion of women with anemia in the second country? O Yes ONo
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A researcher studied iron-deficiency anemia in women in each of two developing countries. Differences in the dietary habits between the two countries led the
researcher to believe that anemia is less prevalent anong women in the first country than among women in the second country. A random sample of 2000
women from the first country yielded 488 women with anemia, and an independently chosen, random sample of 1700 women from the second country yielded
437 women with anemia.
Based on the study can we conclude, at the 0.05 level of significance, that the proportion p, of women with anemia in the first country is less than the
proportion p, of women with anemia in the second country?
Perform a one-tailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places and round your answers as specified in the parts below. (If necessary, consult a list of
formulas.)
(a) State the null hypothesis H, and the alternative hypothesis H,.
H : p1 = 2
H, :0
On
(b) Determine the type of test statistic to use.
Degrees of freedom: 0
OSO
(c) Find the value of the test statistic. (Round to three or more decimal places.)
-0.914
(d) Find the p-value. (Round to three or more decimal places.)
(e) Can we conclude that the proportion of women with anemia in the first
country is less than the proportion of women with anemia in the second
country?
O Yes ONo
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