Two Surgical Procedures Are Widely Used to Treat a Certain

question 53

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. $$\begin{array} { l c c } \hline & n & \text { Number of Successes } \\\hline \text { Procedure A } & 100 & 78 \\\text { Procedure B } & 100 & 92 \\\hline\end{array}$$ 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:

Upton Sinclair

An American writer and social activist known for his novel "The Jungle," which exposed labor and sanitary conditions in the U.S. meatpacking industry, contributing to the passage of federal food safety laws.

The Jungle

A novel by Upton Sinclair published in 1906, exposing the harsh conditions and exploited lives of immigrants in the United States meatpacking industry.

Meat Inspection Act

A United States law passed in 1906 that made it a crime to adulterate or misbrand meat and meat products being sold as food, and ensured that meat and meat products were slaughtered and processed under sanitary conditions.

ICC

The Interstate Commerce Commission, established in 1887 as the first Federal agency monitoring the operations of railroads to ensure fair rates and to regulate other aspects of their service.