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Mathematics, 24.04.2020 18:33 nataliemoore1974
A cell phone company offers two plans to its subscribers. At the time new subscribers sign up, they are asked to provide some demographic information. The mean yearly income for a sample of 38 subscribers to Plan A is $58,400 with a standard deviation of $9,200. For a sample of 31 subscribers to Plan B, the mean income is $62,500 with a standard deviation of $7,100. At the 0.010 significance level, is it reasonable to conclude the mean income of those selecting Plan B is larger
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A cell phone company offers two plans to its subscribers. At the time new subscribers sign up, they...
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