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4. A teacher suspects that less than 25% of homework assignments are submitted at least one day before the deadline. The teacher randomly selected 120

4. A teacher suspects that less than 25% of homework assignments are submitted at least one day before the deadline. The teacher randomly selected 120 homework submissions and observed that 21 of them where turned in at least one day before the deadline. lfp is the proportion of homework assignments submitted at least one day before the deadline, then we are testing Ho: p 2 0.25 versus HA: p

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