Be sure to determine correctly whether the confidence intervals are calculated with the normal distribution
or the t distribution.
a time-use study, 20 randomly selected managers were found to spend a mean of 2.40 h each day on paperwork. The standard deviation of the 20 scores is 1.30 h (based on data from Adia Personnel Services). Also, the sample data appear to have a bell-shaped distribution.
Construct the 95% confidence interval for the mean time spent on paperwork by all managers. If the organization requires its managers to have a mean of 5.60 hours available each day (out of 8 hours) for non-desk work, should they be satisfied with the results of the time study? Why or why not?
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...