A survey by Accountemps asked a sample of 200 executives to provide data on the number of minutes per day office workers waste trying to locate mislabeled, misfiles or misplaced items. Data consistent with this survey are contain in the file ActTemps (posted in the course).
a. Use ActTemps to develop a point estimate of the number of minutes per day office workers waste trying to locate mislabeled, misfiles or misplaced items.
b. What is the sample std. deviation?
c. What is the 95% confidence interval for the mean number of minutes wasted per day?