Which of the following does not qualify as a "category killer?"

The ________ principle specifies that each employee should report to only one manager.

a. unity of direction b. centralization c. vertical authority d. span of management e. unity of command

If we use the Chebyshev's inequality to derive the bounds for a 99.73 percent of the values in a distribution, we get an interval ___ the interval calculated using the Empirical rule and assuming a normal or near-normal distribution.

a. Narrower than b. Wider than c. The same as d. Cannot tell