The Marketing Manager of a Pharmaceutical Company Believes That More

question 35

Essay

The marketing manager of a pharmaceutical company believes that more females than males use its acne medicine. In a recent survey, 2500 teenagers were asked whether or not they use that particular product. The responses, categorised by gender, are summarised below. $$\begin{array} { | l | l | l | } \hline & \text { Use acne medicine } & \begin{array} { l } \text { Do not use acne } \\\text { medicine }\end{array} \\\hline \text { Female } & 540 & 810 \\\hline \text { Male } & 391 & 759 \\\hline\end{array}$$ Do these data provide enough evidence at the 10% significance level to support the manager's claim?

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Definitions:

Parietal Cells

Cells located in the lining of the stomach that secrete hydrochloric acid and intrinsic factor, essential for digestion and vitamin B12 absorption, respectively.

Intrinsic Factor

Intrinsic factor is a protein produced by the stomach lining that is essential for the absorption of vitamin B12, necessary for the production of red blood cells.

HCl

HCl, or hydrochloric acid, is a strong, corrosive acid commonly used in laboratory and industrial applications, and naturally present in gastric acid to aid in digestion.

Enzymatic Digestion

Enzymatic digestion involves the breakdown of food by enzymes into absorbable substances in the digestive system.