The Following Are the Ratings (0 to 4) Given by 12

question 59

Multiple Choice

The following are the ratings (0 to 4) given by 12 individuals for two possible new flavors of soft drinks. Wilcoxon rank-sum is to be used. What is the z test statistic?

• A) -0.3464
• B) 0.3464
• C) 8.6602
• D) 0.2807

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Definitions:

Vitiligo

A skin condition characterized by patches of skin losing their pigment, resulting in irregular white spots.

Miliaria

A skin condition, often referred to as heat rash, characterized by small, itchy bumps caused by blocked sweat ducts during hot and humid conditions.

Impetigo

A highly contagious bacterial skin infection, characterized by red sores, blistering, and a honey-colored crust.

Streptococcus

A genus of coccus (spherical) bacteria, many of which are responsible for diseases in humans and animals.