In this exercise, a two-way table is shown for two groups, 1 and 2, and two possible outcomes, A and B.Enter the exact answers.(a) What proportion of all cases had Outcome A?i(b) What proportion of all cases are in Group 1?i(c) What proportion of cases in Group 1 had Outcome B?M.Group 1Group 2TotalOutcome A Outcome B2080100180120300Total200200400 (d) What proportion of cases who had Outcome A were in Group 2?

Answered: Image /qna-images/answer/19c1a0a8-b017-44cb-a541-3617c7c1b121.jpg

Answered: In this exercise, a two-way table is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 4 1 10 2 8 3 2 4 1 (a) Construct a histogram of the data. (b) Complete the columns of the chart. (Enter exact numbers as integers, fractions, or decimals.) # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 4 1 10 2 8 3 2 4 1
Childhood obesity: A national health survey weighed a sample of 535 boys aged 6 - 11 and found that 83 of them were overweight. They weighed a sample of 474 girls aged 6 - 11 and found that 70 of them were overweight. Can you conclude that the proportion of boys who are overweight is greater than the proportion of girls who are overweight? Let p1 denote the proportion of boys who are overweight and let p2 denote the proportion of girls who are overweight. Use the =α0.05 level of significance and the critical value method with the table. (a) State the appropriate null and alternate hypotheses. (b) Compute the value of the test statistic. (c) State a conclusion at the =α0.05 level of significance.
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