Answer:
D) ± .0207
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 .
The width of the interval is given by the following formula:
In a random sample of 810 women employees, it is found that 81 would prefer working for a female boss.
This means that
95% confidence level
So , z is the value of Z that has a pvalue of , so .
The width of the 95% confidence interval for the proportion of women who prefer a female boss is
So the correct answer is:
D) ± .0207
11 years!
15(1.12)^x=30+2x
when x=11
52.18=52
52=52
Start by creating equations with the information provided
1) x+y=25
2) 2x=3y
Multiply the 1st equation by 2 then substitute 2x for 3y
1) 2x+2y=50
3y+2y=50
5y=50
y=10
Substitute y for 10 in the original equation
1)x+y=25
x+10=25
x=15
Answer: 10 and 15
I believe it’s 1, 3 and 4
56-10=46. 46 divided by 3=15.3 with the 3 repeating