TABLE 10-6 To Investigate the Efficacy of a Diet, a Random Sample

question 50

Short Answer

TABLE 10-6
To investigate the efficacy of a diet, a random sample of 16 male patients is selected from a population of adult males using the diet. The weight of each individual in the sample is taken at the start of the diet and at a medical follow-up 4 weeks later. Assuming that the population of differences in weight before versus after the diet follow a normal distribution, the t test for related samples can be used to determine if there was a significant decrease in the mean weight during this period. Suppose the mean decrease in weights over all 16 subjects in the study is 3.0 pounds with the standard deviation of differences computed as 6.0 pounds.
-Referring to Table 10-6, the computed t statistic is ________.

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Definitions:

Amygdala

A region of the brain involved in experiencing emotions, especially fear and aggression, as well as memory processing.

Fear

An emotional response to perceived threats or danger, serving as a survival mechanism that triggers fight or flight responses.

Anxiety

A feeling of worry, nervousness, or unease about something with an uncertain outcome, often reflecting a condition of mental or emotional strain.

Neural Connections

The synapses or junctions through which neurons communicate with each other, enabling the transmission of electrical or chemical signals.