(a) Define a critical region that has an a = 0.05 signifi- cance level. (b) If respective random samples of sizes n = 900 and n2 = 700 yielded y1 = 135 and y2 = 77 babies with a low birth weight, what is your conclusion? %3D (c) What would your decision be with a significance level of a = 0.01? llor (d) What is the n-value of your test?

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(a) Define a critical region that has an a = 0.05 signifi-
%3D
cance level.
(b) If respective random samples of sizes n = 900 and
n2 = 700 yielded y1 =
low birth weight, what is your conclusion?
135 and y2 = 77 babies with a
(c) What would your decision be with a significance level
of a = 0.01? iwollo
%3D
(d) What is the p-value of your test?
Transcribed Image Text:(a) Define a critical region that has an a = 0.05 signifi- %3D cance level. (b) If respective random samples of sizes n = 900 and n2 = 700 yielded y1 = low birth weight, what is your conclusion? 135 and y2 = 77 babies with a (c) What would your decision be with a significance level of a = 0.01? iwollo %3D (d) What is the p-value of your test?
8.3-14. For developing countries in Africa and the
Americas, let pi and p2 be the respective proportions of
babies with a low birth weight (below 2500 grams). We
shall test Ho: P1 = P2 against the alternative hypothesis
H1: P1 > P2.
%3|
Transcribed Image Text:8.3-14. For developing countries in Africa and the Americas, let pi and p2 be the respective proportions of babies with a low birth weight (below 2500 grams). We shall test Ho: P1 = P2 against the alternative hypothesis H1: P1 > P2. %3|
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