A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study, 412 babies were born, and 240 of them were girls. Use the sample data with a 0.01 significance level to test the claim that with this method, the probability of a baby being a girl is greater than 0.5. Use this information to answer the following questions.

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A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study, 412 babies were born, and 240 of them were girls. Use the sample
data with a 0.01 significance level to test the claim that with this method, the probability of a baby being a girl is greater than 0.5. Use this information to answer the
following questions.
a. Which of the following is the hypothesis test to be conducted?
В. Но р<0.5
O A. Ho: p= 0.5
H1:p>0.5
H1:p=0.5
О с. Но: р30.5
H1: p#0.5
D. Ho: p=0.5
H4:p<0.5
ОЕ. Но: р> 0.5
H1:p=0.5
O F. Ho: p+0.5
H4:p=0.5
b. What is the P-value?
P-value =
(Round to four decimal places as needed.)
c. What is the conclusion?
A. There is not sufficient evidence to support the claim, so the proportion of girls is not significantly different from 0.5.
B. There is sufficient evidence to support the claim, so the proportion of girls is significantly different from 0.5.
d. Does the method appear to be effective?
A. The study is able to show that the method is effective in increasing the probability of a baby being a girl.
B. The study is not able to show that the method is effective in increasing the probability of a baby being a girl.
Transcribed Image Text:A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study, 412 babies were born, and 240 of them were girls. Use the sample data with a 0.01 significance level to test the claim that with this method, the probability of a baby being a girl is greater than 0.5. Use this information to answer the following questions. a. Which of the following is the hypothesis test to be conducted? В. Но р<0.5 O A. Ho: p= 0.5 H1:p>0.5 H1:p=0.5 О с. Но: р30.5 H1: p#0.5 D. Ho: p=0.5 H4:p<0.5 ОЕ. Но: р> 0.5 H1:p=0.5 O F. Ho: p+0.5 H4:p=0.5 b. What is the P-value? P-value = (Round to four decimal places as needed.) c. What is the conclusion? A. There is not sufficient evidence to support the claim, so the proportion of girls is not significantly different from 0.5. B. There is sufficient evidence to support the claim, so the proportion of girls is significantly different from 0.5. d. Does the method appear to be effective? A. The study is able to show that the method is effective in increasing the probability of a baby being a girl. B. The study is not able to show that the method is effective in increasing the probability of a baby being a girl.
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