Someone claims that the proportion of adults getting low, medium, and high amounts of exercise is .5,

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Someone claims that the proportion of adults getting low, medium, and high amounts of exercise is .5, .3, and .2, respectively. To check this claim you sample 100 individuals and find that 40 get low amounts of exercise, 50 get medium amounts, and 10 get high amounts. Test the claim with α = .05.

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