A random sample of 80 items is found to have a mean of 42 and standard deviation of 7. Find 99%confidence interval for t
Posted: Thu Jan 13, 2022 5:48 am
A random sample of 80 items is found to have a mean of 42 and standard deviation of 7. Find 99%confidence interval for the mean of the population from which the sample is drawn. [3 Marks]