The lowering in cholesterol associated with weight loss

Reference no: EM131118139

A researcher hypothesizes that the lowering in cholesterol associated with weight loss is really due to exercise. To test this, the researcher carefully controls for exercise while comparing the cholesterol levels of a group of subjects who lose weight by dieting with a control group that does not diet. The difference between groups in cholesterol is not significant. Can the researcher claim that weight loss has no effect?

Q8: A significance test is performed and p = .20. Why can't the experimenter claim that the probability that the null hypothesis is true is .20?

Reference no: EM131118139

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