Two Surgical Procedures Are Widely Used to Treat a Certain

question 69

Essay

Two surgical procedures are widely used to treat a certain type of cancer. To compare the success rates of the two procedures, random samples of surgical patients were obtained and the numbers of patients who showed no recurrence of the disease after a 1-year period were recorded. The data are shown in the table.
$$\begin{array} { l c c } \hline & n & \text { Number of Successes } \\\hline \text { Procedure A } & 100 & 77 \\\text { Procedure B } & 100 & 87 \\\hline\end{array}$$ How large a sample would be necessary in order to estimate the difference in the true success rates to within .10 with 95% reliability?

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Definitions:

Realistic

Pertaining to the acknowledgment and acceptance of the actual state of affairs, often involving practical and pragmatic viewpoints.

Social

Pertaining to society or its organization, including interactions and relationships among individuals within a community.

Super's Developmental Model

A career development theory that emphasizes how personal experiences interact with occupational preferences over time.

Self-Concept

A collection of beliefs about one’s own basic nature, unique qualities, and typical behavior.