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
Answer:
5*(s+12) = $105
Step-by-step explanation:
5 snacks + 5 tickets makes the total 105 so the equation
5*(s+12) = $105 is the answer to the question.
Answer:
Step-by-step explanation:
i² = -1
i⁵ = i² * i² * i
= (-1) * (-1) * i
i⁵ = i
i²⁵ = i ⁵ˣ⁵ = (i⁵)⁵
= (i)⁵
= i
3(2+n)-2(5-2n)
Mutiply the first bracket by 3
(3)(2)= 6
(3)(n)= 3n
Mutiply the second bracket by -2
(-2)(5)= -10
(-2)(-2n)= 4n
6+3n-10+4n
6-10+3n+4n ( combine like terms )
-4+7n or 7n-4
Answers: -4+7n or 7n-4