Question

8. ssume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 110 with 53.6% successes at a confidence level of 95%.

M.E. = _____ %

9. Giving a test to a group of students, the grades and gender are summarized below

	A	B	C	Total
Male	6	18	3	27
Female	9	20	2	31
Total	15	38	5	58

Let π represent the percentage of all female students who would receive a grade of C on this test. Use a 85% confidence interval to estimate p to three decimal places.
Enter your answer as a tri-linear inequality using decimals (not percents).
________ < p < _________

Answer 1