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Suppose a survey of a random sample of 144 smokers, conducted by New York State Department of Health, suggests that the mean number of
Suppose a survey of a random sample of 144 smokers, conducted by New York State Department of Health, suggests that the mean number of cigarettes a person smokes in a day in New York (Y) is 2.58 and the standard deviation (sy) is 0.58. New York State Department of Health is concerned about the results of the survey and wants to test whether the mean number of cigarettes a person smokes in a day is 2.52 or not. The test statistic associated with the above test is (Round your answer to two decimal places.) If New York State Department of Health uses a 5% significance level, the test statistic suggests that we cigarettes a person smokes in a day is 2.52 the hypothesis that the mean number of
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