Answer:
Step-by-step explanation:
Given that among employed women, 35% have never been married. Select 11 employed women at random.
a) probability for success in each trial p = 0.35 and no of trials = n =11
b) the probability that exactly 3 of the 11 women in your sample have never been married=
P(X=3) =
c) the probability that 2 or fewer women have never been married
=
Answer:
The 99% confidence interval for the proportion of athletes who graduate is (0.5309, 0.7323).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
For this problem, we have that:
99% confidence level
So , z is the value of Z that has a pvalue of , so .
The lower limit of this interval is:
The upper limit of this interval is:
The 99% confidence interval for the proportion of athletes who graduate is (0.5309, 0.7323).
Answer:
Step-by-step:
It takes him 1.4 minutes to read one page.
Answer:
m=4
Step-by-step explanation:
4m-4-8=-2m+12
Combine like terms
4m-12 = -2m +12
Add 2m to each side
4m+2m -12 =-2m +2m+12
6m-12 = 12
Add 12 to each side
6m-12+12 =12+12
6m =24
Divide by 6
6m/6 =24/6
m =4