Answer:
Option d.
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 margin of error is:
79 percent of adults age 18 years and older in the United States use the Internet.
This means that 
98% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
Which of the following should be used to find the sample size (n) needed?
We have to find n for which 
So the equation is:
Option d.
Fv=6599.20(1+0.042/12)^12*7
Fv=8850.20
Interest earned=8850.20-6599.20
=2,251
So the answer is a
Answer:
f(x) = 3x^4 – 48.
x=2,-2
Step-by-step explanation:
Answer:
0.25
Step-by-step explanation:
hope that helps! ^w^
The time Jim runs in the evening compared to the morning time is: 60 minutes : 25 minutes = 2.4 times
At the same speed as in the morning, Jim will run a distance of: 5 x 2.4 = 12 km
