At one high school the average amount of time tenth-graders, Ask an Expert

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At one high school, the average amount of time tenth-graders spend watching television each week is 21.6 The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased.?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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