Question
In: Statistics and Probability
We wish to create a 95% confidence interval for the proportion. A sample of 50 gives...
We wish to create a 95% confidence interval for the proportion. A sample of 50 gives a proportion of 0.2. Find the upper value for the confidence interval. Round to 3 decimal places.
Solutions
Expert Solution
The confidence interval for the population proportion 
is
calculated using the formula-
where, The upper value of this confidence
interval is: 
We need to construct a 95% confidence interval for population
proportion :
sample proportion, 
sample size, 
For 95% confidence interval, 
Calculation for the Upper value of the confidence interval:
So, the upper value of the 95% confidence interval for the population proportion is 0.311
orchestra answered 2 years agoRelated Solutions
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