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nominal, ordinal, interval, and ratio scale

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1. Select four variables, that could be measured by nominal, ordinal, interval, and ratio scale. Classify them by measurement scale and select a descriptive statistic that can be used to summarize data. Use the following table when posting your response:

Variable Level of Measurement Descriptive Statistic
Nominal
Ordinal
Interval
Ratio

2. Suppose an advertisement reported that the mean weight loss after using a certain exercise machine for 2 months was 10 pounds. You investigate further and discover that the median weight loss was 3 pounds.

a. Explain whether it is most likely that the weight losses were skewed to the right, skewed to the left, or symmetric.

b. As a consumer trying to decide whether to buy this exercise machine, would it have been more useful for the company to give you the mean or the median? Explain.

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Solution Summary

The solution provides detailed explanation for variable types and identifying the skewed distribution.

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See Also This Related BrainMass Solution

Levels of measurement: Nominal, Ordinal, Interval and Ratio.

Regarding four scales referring to levels of measurement: Nominal, Ordinal, Interval and Ratio.

Please pick one and discuss one level of measurement, and briefly describe how you would use that type of measurement in a study.

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