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In a study of smokers who tried to quit smoking with nicotine patch therapy, 39 were smoking one year after treatment, and 32 were not

In a study of smokers who tried to quit smoking with nicotine patch therapy, 39 were smoking one year after treatment, and 32 were not smoking one year after the treatment. We want to use a 0.05 significance level to test the claim that amongst smokers who try to quit with nicotine patch therapy, the majority are smoking a year after treatment.

What is the value of the standard score for the sample proportion?

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