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

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Basic Math

Question 2 [25]
UNAM Alumni Office sample of 250 alumnus to find out if they wereemployed in one years after completion of their studies and resultswere 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 [6]
b) 90% confidence interval [4]
c) The Margin of error at 95% confidence level [6]
d) 95% confidence interval [4]


Page 10 of 13

e) The size of sample should be taken with a 0.90 probability, ifthe desired margin of error is 2% [5]

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