1. The result of an English test was collected, and the grades and gender are summarized below

	A	B	C	Total
Male	16	13	8	37
Female	18	2	9	29
Total	34	15	17	66

Letpprepresent the proportion of all female students who would receive a grade of A on this test. Use a 90% confidence interval to estimatepptothree decimal places. Enter your answer as a tri-linear inequality using decimals (not percents).

Incorrect (0.183)

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

	A	B	C	Total
Male	10	5	13	28
Female	9	20	14	43
Total	19	25	27	71

Letpprepresent the percentage of all male students who would receive a grade of A on this test. Use a 99.5% confidence interval to estimate p to three decimal places. Enter your answer as a tri-linear inequality using decimals (not percents).

Correct (0.025) < p < (0.257) incorrect

1. We wish to estimate what percent of adult residents in a certain county are parents. Out of 200 adult residents sampled, 104 had kids. Based on this, construct a 99% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places. Incorrect(0.520) < p < (0.091) Incorrect