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Suppose a researcher wished to determine whether sales had improved since a recent promotions campaign by comparing the sales averages before and after the campaign to evaluate its effectiveness. Which of the following statistical tests would you suggest?
Profit Margin
The ratio of net profits to revenues for a company, indicating the efficiency at which it can convert revenue into profit.
Return on Investment
A financial ratio that calculates the gain or loss generated on an investment relative to the amount of money invested.
Investment Turnover
A financial ratio that measures the efficiency of a company's use of its investments in generating sales revenue.
Return on Investment
A performance measure used to evaluate the efficiency or profitability of an investment, calculated as the net profit divided by the cost of the investment.
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