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QUESTION
In a survey of 1,200 social media users, 76% said it is okay to friend co-workers, but 56% said it is not okay to friend your boss.
In a survey of 1,200 social media users, 76% said it is okay to friend co-workers, but 56% said it is not okay to friend your boss. a.Construct a 95% confidence interval estimate for the population proportion of social media users who would say it is okay to friend co-workers. b. Construct a 95% confidence interval estimate for the population proportion of social media users who would say it is not okay to friend their boss.
a. Confidence interval = +/- (critical value)(standard error)Confidence interval = +/- (za/2)(√p(1-p)/n)The critical value, za/2, for our confidence interval 95%, alpha (or a) is 5%. So...