Homework Help: statistics

Posted by nancy on Saturday, September 10, 2011 at 7:16pm.

a sample of 120 men and women randomly divided into 3 groups with 40 people per group. group 1 members varied their workouts. group 2 performed the same exercise at each workout. group 3 had no set schedule or regulations for their workouts. by the end of the study 18 people had dropped out of the first exercise group. estimate the dropout rate for exercises who vary their routine using a 95% confidence interval

statistics - casey t, Sunday, September 11, 2011 at 11:31pm
it's not 18/40 to find p.
statistics - casey t, Monday, September 12, 2011 at 12:05am
18/40 to find p .45+/-1.96 square of (.45)(.55)/40

:)

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