Which of the scale among ratio and interval scale is better? Justify our answer?
Solution:
The Ratio scale is better:
Interval Scale:
An interval scale assumes that the measurements are made in equal units. However, an interval scale does not have to have a true zero. Good examples of interval scales are the Fahrenheit and Celsius temperature scales. A temperature of "zero" does not mean that there is no temperature...it is just an arbitrary zero point. An Interval Scale.
An interval scale assumes that the measurements are made in equal units. However, an interval scale does not have to have a true zero. Good examples of interval scales are the Fahrenheit and Celsius temperature scales. A temperature of "zero" does not mean that there is no temperature...it is just an arbitrary zero point. An Interval Scale.
Ratio Scale
Ratio scales are similar to interval scales. A ratio scale allows you to compare differences between numbers. For example, if you measured the time it takes 5 people to run for win a race, their times may be 10 seconds (Racer A), 15 seconds (Racer B) and 20 seconds (Racer C) 25 seconds (Racer D) 30 seconds (Racer E). You can say with accuracy, that it took Racer E twice as long as Racer A. Unlike the interval scale, the ratio scale has a true zero value.
Ratio scales are similar to interval scales. A ratio scale allows you to compare differences between numbers. For example, if you measured the time it takes 5 people to run for win a race, their times may be 10 seconds (Racer A), 15 seconds (Racer B) and 20 seconds (Racer C) 25 seconds (Racer D) 30 seconds (Racer E). You can say with accuracy, that it took Racer E twice as long as Racer A. Unlike the interval scale, the ratio scale has a true zero value.
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