Answer:
The lower interval limit for our 95% confidence interval is of 0.0412.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
We have taken a random sample of 100 observations and observed 10 instances of the characteristic in question.
This means that
95% confidence level
So , z is the value of Z that has a pvalue of , so .
The lower limit of this interval is:
The lower interval limit for our 95% confidence interval is of 0.0412.