A Work Sampling Method Is Used to Determine the Proportion

question 48

Multiple Choice

A work sampling method is used to determine the proportion of the time a worker is idle.The following information was gathered on a random basis. If the manager wants a 95 percent confidence level (z = 1.96) and a degree of precision of + 0.03,how many more observations are needed?

• A)fewer than or equal to 600
• B)greater than 600 but fewer than or equal to 800
• C)greater than 800 but fewer than or equal to 1,000
• D)greater than 1,000

---

Definitions:

Normal Distribution

A statistical distribution where data is symmetrically distributed around the mean, forming a bell-shaped curve.

Random Sampling

Sampling in which every member of a population has an equal chance to be selected and in which selection is determined by “luck of the draw” rather than a decision by the researcher.

Degrees

Units of measurement for angles in a circle or for temperature; in the context of education, it refers to academic qualifications.

Freedom

The power or right to act, speak, or think as one wants without hindrance or restraint.