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Profit Margin
An investor is considering two types of investment.She is quite satisfied that the expected profit margin on Investment 1 is higher than the expected profit margin on Investment 2.However,she is quite concerned that the risk associated with Investment 1 is higher than that of Investment 2.To help make her decision,she randomly selects seven monthly profit margins on investment 1 and ten monthly profit margins on investment 2.She finds that the sample variances of Investments 1 and 2 are 225 and 118,respectively.
-{Profit Margin Narrative} Estimate with 95% confidence the ratio of the two population variances.
Strong Opening
A strong opening refers to the compelling start of a communication piece, such as a presentation, article, or story, designed to grab the audience's attention immediately.
Presentation
The act of showing and explaining the content of a topic to an audience, often involving visual aids and public speaking skills.
Personalize
The act of tailoring something to meet the specific needs, preferences, or interests of an individual or group.
Signpost
An explicit statement of the place that a speaker or writer has reached: “Now we come to the third point.”
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