The Data Represent the Measure of a Variable Before and After

question 103

Essay

The data represent the measure of a variable before and after a treatment. Does the sample evidence suggestthat the treatment is effective in increasing the value of the response variable? Use the α = 0.01 level ofsignificance. Assume that the differenced data come from a population that is normally distributed with nooutliers. $$\begin{array} { c | c c c c c c c } \text { Subject } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } & \text { F } & \text { G } \\\hline \text { Before, } X _ { \mathrm { i } } & 9.4 & 9.7 & 9.6 & 9.5 & 9.4 & 9.4 & 9.5 \\\hline \text { After, } \mathrm { Y } _ { \mathrm { i } } & 9.5 & 9.9 & 9.6 & 9.4 & 9.5 & 9.7 & 9.3\end{array}$$

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Definitions:

Symptoms Of Depression

Manifestations of depression that can include emotional symptoms such as persistent sadness, and physical symptoms like changes in sleep or appetite.

Alleviating

Refers to the act of making a problem or pain less severe or more bearable.

Adjunctive Psychotherapy

A form of psychotherapy used alongside other treatments, such as medication, to address additional aspects of a patient's mental health condition.

Bipolar Disorder

A mental disorder characterized by significant mood swings, including manic highs and depressive lows.