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A study is run comparing hdl cholesterol levels between men

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A study is run comparing HDL cholesterol levels between men who exercise regularly and those who do not. The data are shown below. The pooled standard deviation is 12.04.  

Regular Exercise N Mean
Yes 35 48.5
No 120 56.9

Researchers believe there is a difference between men who exercise and those who do not. What is the appropriate critical value to run a hypothesis test at the alpha level=0.05?

Reference no: EM13629467

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