For instance, if we wanted to find the true mean grade for a statistics course using a 99% confidence critical value, we may get a very large margin of error, 75% ± 25%. This would say that we would b...For instance, if we wanted to find the true mean grade for a statistics course using a 99% confidence critical value, we may get a very large margin of error, 75% ± 25%. This would say that we would be 99% confident that the average grade for all students is between 50% to 100%. This is of little help since that is anywhere between the grade range of F to an A.
For instance, if we wanted to find the true mean grade for a statistics course using a 99% confidence critical value, we may get a very large margin of error, 75% ± 25%. This would say that we would b...For instance, if we wanted to find the true mean grade for a statistics course using a 99% confidence critical value, we may get a very large margin of error, 75% ± 25%. This would say that we would be 99% confident that the average grade for all students is between 50% to 100%. This is of little help since that is anywhere between the grade range of F to an A.