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

question 22

Essay

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

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Definitions:

Gallstones

Gallstones are solid particles that form from bile cholesterol and bilirubin in the gallbladder, which can lead to pain, inflammation, and infection.

Jaundice

A condition characterized by yellowing of the skin and the whites of the eyes, caused by elevated bilirubin levels in the bloodstream.

Sclera

The white outer layer of the eyeball, offering protection and giving the eye its shape.

Mucosa

The moist, inner lining of some organs and body cavities, such as the nose, mouth, lungs, and stomach.