A Politician Has Commissioned a Survey of Blue-Collar and White-Collar

question 58

Essay

A politician has commissioned a survey of blue-collar and white-collar employees in her electorate. The survey reveals that 286 out of 542 blue-collar workers intend to vote for her in the next election, whereas 428 out of 955 white-collar workers intend to vote for her.
a. Can she infer at the 5% level of significance that the level of support differs between the two groups of workers?
b. What is the p-value of the test? Explain how to use it to test the hypotheses.

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Definitions:

External Failure Costs

Costs that occur after a product has been delivered to the customer and a defect has been found, including returns, repairs, and warranty claims.

Incentive Compensation

A form of payment designed to motivate and reward employees beyond their regular pay, based on their performance.

Balanced Scorecard Performance Measures

A strategic planning and management system used to align business activities to the vision and strategy of the organization, improve internal and external communications, and monitor organization performance against strategic goals.

Customer Measures

Metrics or indicators used to evaluate the satisfaction, loyalty, retention, and acquisition of customers within a business.