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What are the primary sources of economic growth? Why are our real incomes and living standards today so much higher than those of our great grandparents 50 or 100 years ago? Why is the income per person so much higher in some countries than others?
Confidence Coefficient
The probability that a confidence interval contains the true population parameter, typically expressed as a percentage.
Margin Of Error
An estimate of the amount of random sampling error in a survey's results, expressing the range within which the true value is expected to lie with a certain level of confidence.
Sample Size
The number of observations or units included in a sample from a population, critical for the reliability of statistical analyses.
Interval Estimate
An array of values extracted from sampling efforts, which is supposed to enclose the value of an unidentified population parameter.
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