Professors in the Department of Animal Sciences want to esti…
Professors in the Department of Animal Sciences want to estimate the average length of time it takes students to complete a class project correct to within 5 hours with a 98% level of confidence. Determine the sample size needed to estimate the average length of time required to complete the project to within 5 hours with a 98% level of confidence. They do not know the standard deviation of the times, but they remember that last year the shortest amount of time needed to complete the project was 5 hours and the longest amount of time was 29 hours.