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Question
according to the cdc, the average weight of men in 1990 was 181 pounds. consider a claim that the average weight of men increased by 2014. (https://abcnews.go.com/health/average-weight-american-men-15-pounds-20-years/story?id=41100782) use these hypotheses: h0: mean = 181 ha: mean > 181 if you reject the null hypothesis, then your conclusion would be: there is not sufficient evidence to warrant rejection of the null hypothesis that the average weight of men is the same. there is sufficient evidence to warrant rejection of the null hypothesis and to support the claim that the average weight of men increased.
In hypothesis testing, when we reject the null hypothesis ($H_0$: mean = 181), we conclude that there is sufficient evidence to support the alternative hypothesis ($H_A$: mean > 181), which is the claim that the average weight of men increased. The first option describes a situation where we fail to reject the null hypothesis, so it's incorrect.
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There is sufficient evidence to warrant rejection of the null hypothesis and to support the claim that the average weight of men increased.