Use McNemar S Test to Compare Two Proportions from Matched $0.10$

question 123

Multiple Choice

Use McNemar s Test to Compare Two Proportions from Matched -pairs Data
-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 the two types 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. How large a sample would be necessary in order to estimate the difference in the true success rates to within $0.10$ with $95 \%$ reliability?
$\begin{array}{lcc}\hline & \mathrm{n} & \text { Number of Successes } \\\hline \text { Procedure A } & 100 & 95 \\\text { Procedure B } & 100 & 83 \\\hline\end{array}$

• A) \(\mathrm { n } _ { 1 } = \mathrm { n } _ { 2 } = 73\)
• B) \(\mathrm { n } _ { 1 } = \mathrm { n } _ { 2 } = 51\)
• C) \(\mathrm { n } _ { 1 } = \mathrm { n } _ { 2 } = 36\)
• D) \(\mathrm { n } _ { 1 } = \mathrm { n } _ { 2 } = 192\)

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Definitions:

Continuation

The process of extending or carrying something on over a period of time.

Reversible Figures

Visual illusions or images that can be interpreted in two different ways, flipping back and forth between the two interpretations.

Figure-Ground Organization

Figure-Ground Organization is a type of perceptual grouping that involves distinguishing a figure from its background in visual processing.

Proximal Stimulus

Reception of information and its registration by a sense organ (e.g., retinal images in the case of vision). Contrast with distal stimulus.