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a physical therapist wants to determine the difference in the proportion of men and women who...

a physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if
hehe
wishes the estimate to be within
twotwo
percentage points with
9999​%
​confidence, assuming that
​(a)
hehe
uses the estimates of
22.622.6​%
male and
18.118.1​%
female from a previous​ year?
​(b)
hehe
does not use any prior​ estimates?
​(a)
nequals=
nothing
​(Round up to the nearest whole​ number.)
Math   Statistics-And-Probability   
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