Use the Following Data for the Next Questions

question 1

Short Answer

Use the following data for the next questions. Researchers studying sleep loss
followed the length of sleep, in hours, of 10 individuals with insomnia before and
after cognitive behavioral therapy (CBT). Use the Wilcoxon Signed-Ranks Test
with a .05 significance level to test the claim that both samples come from
populations having differences with a median equal to zero.

-Determine the value of the T test statistic.

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Definitions:

Papillary Muscles

Muscular projections from the ventricular walls of the heart that attach to the cusps of the atrioventricular valves via the chordae tendineae and prevent valve inversion.

Regurgitation

The backward flow of blood through a valve in the heart due to the valve not closing properly, or the process of vomiting undigested food.

Cardiac Muscle Tissue

Tissue composed of cells that form the myocardium of the heart, responsible for the rhythmic contractions that pump blood.

Myocardium

The thick, muscular middle layer of the heart wall, composed of cardiac muscle cells that contract to pump blood through the circulatory system.