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Business, 11.12.2019 21:31 sylviaelizabeth4135

At the time she was hired as a server at the grumney family restaurant, beth brigden was told, "you can average $80 a day in tips." assume the population of daily tips is normally distributed with a standard deviation of $9.95. over the first 35 days she was employed at the restaurant, the mean daily amount of her tips was $84.85. at the 0.01 significance level, can ms. brigden conclude that her daily tips average more than $80?

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