Mathematics, 13.11.2019 23:31 floreschachi2873
In a smoking cessation program, over 2000 smokers who were trying to quit were randomly assigned to either a group program or an individual program. after six months in the program, 148 of the 1080 in the group program were successfully abstaining from smoking, while 120 of the 990 in the individual program were successful. state the null and alternative hypothesis.
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