Which federal agency is charged under the Railway Labor Act to hold secret ballot union certification elections?

_______ managers have decision-making authority and usually have people reporting to them, whereas _______ positions provide advice, recommendation and research.

Fill in the blank(s) with the appropriate word(s).

The four questions of who, what, why and how are relevant to which of the following aspects of conducting surveys?

A) tapping the unseen in survey research B) computer-administered surveys C) self-administered surveys D) subgroup analysis E) simplified administration