New treatment for congestive heart failure

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A study was conducted of 90 adult male patients following a new treatment for congestive heart failure. One of the variables measured on the patients was the increase in exercise capacity (in minutes) over a 4-week treatment period. The previous treatment regime had produced an average increase of ? = 2 minutes. The researchers wanted to evaluate whether the new treatment had increased the value of ? in comparison to the previous treatment. The data yielded LaTeX: bar{x} = 2.17x¯=2.17 and LaTeX: s = 1.05s=1.05. Using LaTeX: alpha; = 0.05α; =0.05, what conclusions can you draw about the research hypothesis using rejection region approach?

Reference no: EM131966860

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