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.

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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 11 months ago

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