City x has a population of 3x10 to the fifth power. City y has a population of 6x10 to the sixth power. Which statement correctl
1 answer:
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Answer:
And rounded up we have that n=8068
Step-by-step explanation:
The margin of error for the proportion interval is given by this:
(a)
We want for this case a 95% of confidence desired, our significance level would be given by and
. And the critical value would be given by:
The margin of error for this case is and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The estimated proportion for this case is . And replacing into equation (b) the values from part a we got:
And rounded up we have that n=8068