Use the Sign Test to Test the Indicated Claim At the 5 Percent Level, Test the Null Hypothesis That

question 29

Essay

Use the sign test to test the indicated claim. Fourteen people rated two brands of soda on a scale_
of 1 to 5. $$\begin{array}{l}\begin{array} { c | c c c c c c c } \text { Brand A } & 2 & 3 & 2 & 4 & 3 & 1 & 2 \\\hline \text { Brand B } & 1 & 4 & 5 & 5 & 1 & 2 & 3\end{array}\\\\\begin{array} { l | l l l l l l l } \text { Brand A } & 5 & 4 & 2 & 1 & 1 & 4 & 3 \\\hline \text { Brand B } & 4 & 5 & 5 & 2 & 4 & 5 & 4\end{array}\end{array}$$ At the 5 percent level, test the null hypothesis that the two brands of soda are equally popular.

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Definitions:

Central Nervous System

The complex of nerve tissues that controls the activities of the body, principally consisting of the brain and spinal cord.

Somatic Nervous System

Part of the peripheral nervous system that handles voluntary control of body movements through the control of skeletal muscles.

Voluntary Nervous System

Refers to the part of the nervous system that governs voluntary movements of the body, typically associated with the somatic nervous system.

Efferent Nerves

Nerves that carry neural impulses away from the central nervous system to effectors such as muscles or glands.