Giving a test to a group of students, the grades and gender are summarized below   A B C Total Male 5 10 16 31 Female 8 3 9 20 Non-binary 2 4 14 20 Total 15 17 39 71 Let ππ represent the percentage of all female students who would receive a grade of A 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).

A student organization surveyed both current students and recent graduates to obtain information on the quality of teaching at a particular university. An analysis of the responses provided the following teaching-ability rankings. Professor O Ho: Ps+0 H₂: Ps=0 O Ho: Ps ≤0 Ha: P >0 1 Ho: Ps > 0 H₂: Ps=0 2 Ho: Ps= 0 Ha: Ps * 0 3 4 5 6 7 9 10 Current Students 4 6 8 3 1 2 5 10 7 9 Recent Graduates 6 8 5 1 2 3 7 Do the rankings given by the current students agree with the rankings given by the recent graduates? Compute the rank correlation between current students and recent graduates. (Round your answer to three decimal places.) 9 Use α = 0.10 and test for a significant rank correlation. State the null and alternative hypotheses. O Ho: P₂ ZO Ha: Ps <0 10 4 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value= What is your conclusion? O Reject Ho. There is not sufficient evidence to conclude…

Consider the following data set *; | -1|2|3 Yi | 3 |2|1 and the model y = a, + a1¤ Calculate the squared error (SE) for the choice a, = 8 and a1 = -1 Answer:

The following data represents the times it took some rats to complete a maze (in seconds).64, 70, 81, 76, 69, 81, 75, 58, 63, 68, 72, 86a) What is the mean time?  b) Give the 5-number summary of the data.Show your work. Label your numbers.