Four cups are placed upturned on the counter. each cup has the same number of sweets and a declaration about the number of sweet
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The number of the families that need to be surveyed will be 2663.
<h3>What is the margin of error?</h3>
Your results will deviate from the actual population value by how many percentage points, as indicated by the margin of error.
We have the following info:
ME = 50 margins of error desired
= 1000 the standard deviation for this case
The margin of error is given by this formula:
(a)
And on this case, we have that ME =50 and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The critical value for the 99% of confidence interval now can be founded using the normal distribution. The significance is = 0.01. And for this case would be
= 2.58, replacing into formula (b) we got:
So the answer for this case would be n=2663 rounded up to the nearest integer.
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