In: Statistics and Probability
A study was done and 125 out of 138 answered yes to the
question
Find a 99% confidence interval.
Give all answers correct to 3 decimal places.
a) Critical value (positive value only):
Remember: this is the z value such that the percent given is
centered on the normal curve.
b) If some study was done and 125 out of 138 answered yes to the
question, What is ˆpp^? Hint: Divide the
number that said yes by the total.
c) What type of point estimate are we using here?
d) What is the margin of error?
e) We can be 99% sure the population proportion is
between and