1. The observation data from a work sampling study provides information regarding:

		the number of wasted motions.
		the level of difficulty in a motion.
		the percent of time spent on various tasks.
		the quality of the work environment.
		the number of micro-motions involved.

2.A work sampling study requires an acceptable error level of 10 percent and z = 2 for 95.45 percent confidence. The adequate sample size is ________ if the sample proportion is thought to be as large as 50 percent, but ________ if the sample proportion is thought to be about 10 percent.

		50; 20
		100; 64
		100; 16
		20; 50
		100; 36