A Study Has Indicated That the Sample Size Necessary to Estimate

question 29

Multiple Choice

A study has indicated that the sample size necessary to estimate the average electricity use by residential customers of a large western utility company is 900 customers. Assuming that the margin of error associated with the estimate will be ±30 watts and the confidence level is stated to be 90 percent, what was the value for the population standard deviation?

• A) 265 watts
• B) Approximately 547.1 watts
• C) About 490 watts
• D) Can't be determined without knowing the size of the population.

Understand the role of a supervisor in managing upwards and communicating with managers and peers effectively.

Recognize the attributes of successful leaders in emerging economies.

Understand the relationship between leadership style and the tolerance for ambiguity.

Grasp the implications of leadership on organizational and team effectiveness.

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Definitions:

Flow of Consciousness

A term used in psychology and literature to describe a person's inner stream of thoughts, feelings, and awareness, often in a continuous flow.

Mind Wandering

A cognitive process of thoughts shifting away from a task towards unrelated concerns or fantasies, often occurring unconsciously.

Circadian Rhythm

The natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Biological Clock

An internal mechanism that regulates physiological and behavioral functions on a cyclical basis, such as sleep and wakefulness.