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Mathematics, 25.11.2020 14:20 amberwithnell12512
Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the phone. The organization thinks that, currently, the mean is higher. Fifteen randomly chosen teenagers were asked how many hours per week they spend on the phone. The sample mean was 4.75 hours with a sample standard deviation of 2.0. Conduct a hypothesis test, the Type I error.
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Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the pho...
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