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Asked Dec 20, 2019

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In Exercises 21–28, determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate.Movie Ratings The author rated the movie Star Wars: The Force Awakens with 5 stars on a scale of 5 stars.

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**Four types of measurement scales:**

**Nominal**: This type of scaling is used when a variable takes categories with no natural ordering present in it.

**Ordinal**: This type of scaling is used when a variable takes categories with natural ordering present in it. Example: Satisfied, neutral and negative. Sometimes the variable may take numerical values like movie ratings, in this case finding the difference between two ratings is not meaningful.

**Interval:** This type of scaling is used when the var...

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