During a Water Shortage, a Water Company Randomly Sampled Residential

question 87

Short Answer

During a water shortage, a water company randomly sampled residential water meters in order to monitor daily water consumption. On a particular day, a sample of 100 meters showed a sample mean of 250 gallons and a sample standard deviation of 50 gallons. Provide a 90% confidence interval estimate of the mean water consumption for the population.
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Definitions:

Biological Prepared

Refers to the concept that certain behaviors or physiological responses are innately programmed in organisms to aid in their survival.

Counterconditioning

A fear-reduction technique in which pleasant stimuli are associated with fear-evoking stimuli so that the fear-evoking stimuli lose their aversive qualities.

Flooding

A behavioral fear-reduction technique based on principles of classical conditioning; fear-evoking stimuli (CSs) are presented continuously in the absence of actual harm so that fear responses (CRs) are extinguished.

Unconditioned Stimulus (UCS)

A stimulus that elicits a response from an organism prior to conditioning.