A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 666 babies were born, and 33 interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective?

MATLAB: An Introduction with Applications
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A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 666 babies were born, and 333 of them
interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective?
< p < (Round to three decimal places as needed.)
n example Get more help -
h
Transcribed Image Text:A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 666 babies were born, and 333 of them interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective? < p < (Round to three decimal places as needed.) n example Get more help - h
ty of conceiving a girl. In the study 666 babies were born, and 333 of them were girls. Use the sample data to construct a 99% confidenc
esult, does the method appear to be effective?
4
Transcribed Image Text:ty of conceiving a girl. In the study 666 babies were born, and 333 of them were girls. Use the sample data to construct a 99% confidenc esult, does the method appear to be effective? 4
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given data,n=666x=333p^ =333666=0.5CI=0.99α=1-0.99=0.01p(Z<Zc)=1-α/2=1-0.01/2=1-0.005=0.9950p(Z<Zc)=0.995         Zc  =2.576 [ from excel function code :=NORMSINV(0.9950)]

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