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If a firm wants to determine total cost, it needs
Population Proportion
The fraction or percentage of a population that exhibits a particular attribute or characteristic.
Confidence Interval
A stretch of numerical indicators, obtained from sample statistics, envisaged to hold the secret value of a population characteristic.
Margin of Error
An expression of the amount of random sampling error in a survey's results, indicating a confidence interval within which the true value lies.
σ
Symbol representing the standard deviation of a population in statistics.
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