A Soft Drink Company Is Conducting Research to Select a New

question 62

Essay

A soft drink company is conducting research to select a new design for the can. A random sample of participants has been selected. Instead of a typical taste test with two different sodas, they actually give each participant the same soda twice. One drink is served in a predominantly red can, the other in a predominantly blue can. The order is chosen randomly. Participants are asked to rate each drink on a scale of 1 to 10. Thus, the company wishes to test if the color of the can influences the rating. The ratings were recorded for
each participant. The data are shown in the table below. Does this sample indicate that there is a difference in the ratings? Test an appropriate hypothesis and state your conclusion.

$\begin{array}{|c|c|c|}\hline \text {Rater }& \text { Red }& \text {Blue} \\\hline 1 & 4 & 6 \\\hline 2 & 7 & 5 \\\hline 3 & 3 & 6 \\\hline 4 & 8 & 9 \\\hline 5 & 5 & 2 \\\hline 6 & 9 & 9 \\\hline 7 & 7 & 10 \\\hline 8 & 5 & 4 \\\hline 9 & 6 & 8 \\\hline 10 & 9 & 7 \\\hline 11 & 8 & 8 \\\hline 12 & 3 & 7 \\\hline 13 & 6 & 5 \\\hline 14 & 8 & 8 \\\hline 15 & 9 & 10 \\\hline 16 & 7 & 6 \\\hline\end{array}$

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Definitions:

Sebaceous Gland

A small gland in the skin that secretes sebum into hair follicles to lubricate the skin and hair, found in greatest abundance on the face and scalp.

Hair Follicle

A dynamic organ found in mammalian skin, responsible for the growth of hair through complex interactions between hormones, neuropeptides, and immune cells.

Sebaceous Gland

A type of gland in the skin that secretes an oily substance called sebum into hair follicles to lubricate the skin and hair.

Eccrine Sweat Gland

A type of sweat gland that helps regulate body temperature through the secretion of sweat on the skin's surface.