An article in Engineering Horizons (Spring 1990, p. 26) reported that 117 of 484 new engineering graduates were planning to cont
inue studying for an advanced degree. Consider this as a random sample of the 1990 graduating class. Round your answers to 3 decimal places.
Required:
a. Find a 90% confidence interval on the proportion of such graduates planning to continue their education.
b. Find a 95% confidence interval on the proportion of such graduates planning to continue their education.
1 answer:
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A is the answer (1/16,14)
I think it’s D because if you divide 25/20 you get 1.25 and the similar pair would be 15/12.
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