I think that the answer is 24.90-66=24
Answer:
He must survey 123 adults.
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 z-score that has a p-value of .
The margin of error is:
Assume that a recent survey suggests that about 87% of adults have heard of the brand.
This means that
90% confidence level
So , z is the value of Z that has a p-value of , so .
How many adults must he survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage?
This is n for which M = 0.05. So
Rounding up:
He must survey 123 adults.
10000(1+0.01)^10 = <span>11046.22
The value would be $11046.22</span>
Answer: this is not a question
Step-by-step explanation:
Answer:
x=.83
Step-by-step explanation:
What you do is you have to get x by itself.
You will have to divide 250 on both sides to get x by itself.
x=.83 is your answer.