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    Maths help.. One tail or Two tailed test..?

    a meteorologist claims that the average of the highest temperature in the United States is 98 degrees. A random sample of 50 cities is selected, and the highest temperatures are recorded. the data are shown.standard deviation =7.71. 97, 101, 99, 99, 100, 94, 87, 99, 108, 93, 96, 88, 98, 97,88...
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