When Testing the Difference Between the Means of a Treatment

question 10

Essay

When testing the difference between the means of a treatment group and a placebo group,the computer display below is obtained.Using a 0.05 significance level,is there sufficient evidence to support the claim that the treatment group (variable 1)represents a population whose mean is less than the mean for the untreated population? Explain.

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Definitions:

Somnambulation

The act of walking or performing complex activities while in a state of sleep; also known as sleepwalking.

Stage III Sleep

A deep sleep phase in the sleep cycle, characterized by slow brain waves called delta waves, important for restorative sleep and health.

Sleep Pattern

The habitual timing, duration, and quality of an individual's sleep, including rhythms of waking and sleeping.

Sleep Diary

A self-reported record kept by an individual to track patterns and problems related to sleep over a period of time.