A sample of 25 different payroll departments found that the employees worked an average of 270.3 days a year with a standard deviation of 23.8 days.

Give an interpretation for this confidence interval. andA study of peach trees showed that the average number of peaches per tree was 500. The standard deviation of the population is 200. A scientist wishes to find the 95% confidence interval for the mean number of peaches per tree. How many trees does she need to sample to be accurate within 16 peaches per tree? Show your work.

A sample of 25 different payroll departments found that the employees worked anaverage of 270.3 days a year with a standard deviation of 23.8 days. What is the 90%confidence interval for the...