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Question 2 [25] UNAM Alumni Office sample of 250 alumnus to find out if they were...

Question 2 [25]
UNAM Alumni Office sample of 250 alumnus to find out if they were employed in one years after completion of their studies and results were as follows 75= Yes responses, 175= No Responses
Compute the following for alumnus who responded Yes.
a) The Margin of error at 90% confidence level

b) 90% confidence interval

c) The Margin of error at 95% confidence level

d) 95% confidence interval

e) The size of sample should be taken with a 0.90 probability, if the desired margin of error is 2%

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