Worker Safety An OSHA Agent Wanted to Determine If Efforts to Promote

question 66

Essay

Worker Safety
An OSHA agent wanted to determine if efforts to promote safety have been successful.By checking the records of 250 workers,he found that 30 of them suffered either minor or major injuries that year.A random sample of 400 workers last year revealed that 80 suffered some form of injury. ​ ​
-{Worker Safety Narrative} Estimate with 95% confidence the difference in population proportions.

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Definitions:

Dividend Payout Ratio

The proportion of net income a firm pays out to its shareholders in the form of dividends.

ROA

Return on Assets, a financial ratio indicating the profitability of a company relative to its total assets.

ROE

Return on Equity, a financial ratio that measures the profitability of a business in relation to shareholder's equity.