It appears you are trying to construct a CI for a proportion.
The sample size n = 20
The sample proportion phat = x/n
The critical z-value z* for a 98% CI is 2.33
The CI is phat +/- z* * square root( phat * (1-phat)/n)
Julio B.
asked • 07/11/20statistics, mth
if n=20, x=43, and s=9, construct a confidence interval at a 98% confidence level.
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