Scott is taking a 3/4-hour dance class twice a week for 8 weeks. How many hours will Scott have spent in dance class at the end
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Answer:
We need at least 243 stores.
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 of the interval is:
For this problem, we have that:
95% confidence level
So , z is the value of Z that has a pvalue of
, so
.
Determine the number of stores that must be sampled in order to estimate the true proportion to within 0.04 with 95% confidence using the large-sample method.
We need at least n stores.
n is found when M = 0.04. So
Rounding up
We need at least 243 stores.
<h3>✽ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>
➷ First find the volume of the rectangular prism:
2 x 4 x 8 = 64
Now you need to cube root it, this would be because all lengths of a cube are equal:
The side length would be 4 inches.
<h3><u>✽</u></h3>
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