Question: Each of five boxes contains a large (but unknown) number of red and green marbles. You have been asked to find if the proportions of

Each of five boxes contains a large (but unknown) number of red and green marbles. You have been asked to find if the proportions of red and green marbles are the same for each of the five boxes. You sample 50 times, with replacement, from each of the five boxes and observe 20, 14, 23, 30, and 18 red marbles, respectively. Can you conclude that the five boxes have the same proportions of red and green marbles? Use a .05 level of significance.

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