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# Defining Proportion, Percentage, and Ratio

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What are the differences among a proportion, a percentage, and a ratio? When would a researcher use a hypothesis test for the difference in two population proportions? Explain.

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#### Solution Preview

Anything ratio the percent has to 100 percent that is the ratio we mean.

The first sections of these collections start out with ratio-related problems. Then come proportions, including lots of word problems. Ongoing on comes a section on part-related problems. These word problems usually include finding a fractional part, or finding the whole when part is given.

The next part is on percent. ...

#### Solution Summary

The concepts of proportion, percentage, and ratio and explained. The correct application of a hypothesis test is also discussed.

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