Test Hypotheses About a Population Proportion
-A Method Currently Used $25 \%$

question 53

Short Answer

Test Hypotheses about a Population Proportion
-A method currently used by doctors to screen women for possible breast cancer fails to detect cancer in $25 \%$ of the women who actually have the disease. A new method has been developed that researchers hope will be able to detect cancer more accurately. A random sample of 70 women known to have breast cancer were screened using the new method. Of these, the new method failed to detect cancer in 8 . Is the sample size sufficiently large in order to conduct this test of hypothesis? Explain.

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Definitions:

Exclusive Dealing

An agreement between a supplier and a retailer where the retailer agrees to only purchase goods from the supplier, excluding competitors.

Vertical Integration

A business strategy where a company expands its operations into different stages of production within its own industry.

Channel Captain

A dominant firm within a distribution channel that exercises authority and control over the activities of other channel members, often setting standards and practices.

Economic Influence

The impact that economic factors such as inflation, unemployment rates, and economic growth have on individuals, businesses, and government policy.