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A. A test was given to a group of students. The grades and gender are summarized...

A.

A test was given to a group of students. The grades and gender are summarized below:

A B C Total
Male 17 16 7 40
Female 4 3 12 19
Total 21 19 19 59



Let p 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 using decimals (not percents).

B. You are performing a left-tailed t - test with test statistic t=−0.23 and a sample of size 33, find the p-value to 4 decimal places

C. You are performing a two-tailed test.

If α=.005, find the positive critical value, to three decimal places.

Math   Statistics-And-Probability   
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