The Average Natural Gas Bill for a Random Sample of 26

question 3

Multiple Choice

The average natural gas bill for a random sample of 26 homes in the 19808 zip code during the month of March was $305.30 with a sample standard deviation of $46.50. The critical value for a 95% confidence interval around this sample mean is __________ .

• A)1.706
• B)1.708
• C)2.056
• D)2.060

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Definitions:

Sensory Stimulus

A signal to which an organism responds, originating from external or internal environments.

Circadian Rhythm

The innate process that controls the cycle of sleeping and waking, which naturally repeats about every 24 hours.

Consciousness

The state or quality of awareness, or being aware of an external object or something within oneself.

Distinct Stages

Clearly separate phases or periods that something or someone undergoes during development or processes.