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Mathematics, 27.03.2020 04:52 nathanscastr02

A researcher believes that women today weigh less than in previous years. To investigate this belief, he randomly samples 41 adult women and records their weights. The scores have a mean of 111 lbs. and a standard deviation of 12.4. A local census taken several years ago shows the mean weight of adult women was 115 lbs. Refer to Exhibit 13-1. The obtained value of the appropriate statistic for testing H0 is .

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