The answer is D but i could be wrong
Answer:
C. 1130
Step-by-step explanation:
The numbers are going up by 7.
Answer:
0.4967<p<0.6033
Not effective
Step-by-step explanation:
given that a clinical trial tests a method designed to increase the probability of conceiving a girl.
In the study 580 babies were born, and 319 of them were girls
Sample proportion p=
Standard error of proportion p =
Margin of error for 99%= Z critical * std error=
(Since sample size is large Z value is used)
Confidence interval 99%
=
0.4967<p<0.6033
This method appears to be not effective as the confidence interval 99% contains 0.50 indicating probability for girls is still 0.50
2/6. divide 2 by 2 and u get 1 and 6 by 2 and u get 3 which means 2/6=1/3