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Benign prostatic hyperplasia is a noncancerous enlargement of the prostate gland that adversely affects the quality of life of millions of men. A study of
Benign prostatic hyperplasia is a noncancerous enlargement of the prostate gland that adversely affects the quality of life of millions of men. A study of a minimally invasive procedure for the treatment of this condition looked at pretreatment quality of life (qol_base) and quality of life after 3 months on treatment (qol_3mo). Small values of QOL scores indicate higher satisfaction. a) Calculate differences in quality of life scores (delta) for each subject, and paste them below: b) Explore the differences with a stem-plot. Describe the distribution (i.e., SOCS). c) Calculate the mean and standard deviation of the difference. Then test the mean difference for statistical significance. Use a two-sided alternative
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