Implement the test in Problem 8.129, and report a two-tailed p-value? Health Promotion Cigarette smoking has important

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Implement the test in Problem 8.129, and report a two-tailed p-value?


Health Promotion

Cigarette smoking has important health consequences and is positively associated with heart and lung diseases. Less well known are the consequences of quitting smoking. A group of 10 nurses, from the Nurses€™ Health Study, ages 50ˆ’54 years, had smoked at least 1 pack per day and quit for at least 6 years. The nurses reported their weight before and 6 years after quitting smoking. A commonly used measure of obesity that takes height and weight into account is BMI = wt/ht2 (in units of kg/m2). The BMI of the 10 women before and 6 years after quitting smoking are given in the last 2 columns of Table 8.32.

Table 8.32: BMI change in 50- to 54-year-old women over a 6-year period

 Never-Having-Smoked women Heavy-smoking women (21 pk/day) BMI 6 years after quitting smoking BMI at 6-year follow-up BMI

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