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