A study was done and 125 out of 138 answered yes to the question Find a...

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?

Mean point estimate
Proportion point estimate

d) What is the margin of error?

e) We can be 99% sure the population proportion is between and

Solutions

Expert Solution

orchestra answered 1 year ago

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