Answer:
(b)
We can use an estimatior for the population proportion as since we don't know previous info. And replacing into equation (b) the values from part a we got:
And rounded up we have that n=1068
Step-by-step explanation:
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since the confidence level is 99%, our significance level would be given by and . And the critical value would be given by:
The margin of error for the proportion interval is given by this formula:
(a)
And on this case we have that and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
We can use an estimatior for the population proportion as since we don't know previous info. And replacing into equation (b) the values from part a we got:
And rounded up we have that n=1068
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Answer:
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Step-by-step explanation:
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Answer:
Point W
Step-by-step explanation:
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