Over the summer, Stan worked for his uncle at his shop. His summer earnings totaled $8,160. With Stan going back to school in th
1 answer:
You might be interested in
Answer:
28 is the area
Step-by-step explanation:
when graphed, the polygon should look like this,
Answer:
The expression is
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 of:
90% confidence level
So , z is the value of Z that has a p-value of
, so
.
What expression would give the smallest sample size that will result in a margin of error of no more than 3 percentage points?
We have to find n for which M = 0.03.
We have no prior estimate for the proportion, so we use . So
The expression is