Aclinical trial tests a method designed to increase the probability of conceiving a girl. in the study 390 babies were born, and 312 of them were girls. use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. based on the result, does the method appear to be effective?

Yes

Step-by-step explanation:

Given

n=390 x=312

Confidence level=99 %

Standard error(S.E.)=

S.E.=

S.E.=0.0202

Confidence interval

Since 0.5 does not lie in interval therefore method appear to be effective

-6 is the correct option from the above given options

step-by-step explanation:

coldest temperature they recorded add me europa2433

europa2433