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CA Foundation · Quantitative Aptitude · Statistical Description of Data

A market researcher in Kochi records each respondent's response to the question 'How satisfied are you with the delivery service?' using the categories Very Dissatisfied, Dissatisfied, Neutral, Satisfied and Very Satisfied. On which scale of measurement is this variable recorded?

The satisfaction ratings are measured on an ordinal scale. The categories have a clear order from very dissatisfied to very satisfied, but the distances between them are not equal or measurable. Nominal data lack any ranking, while interval and ratio data require meaningful numerical differences.

  1. ANominal scale
  2. BOrdinal scaleCorrect
  3. CInterval scale
  4. DRatio scale

Explanation

The categories can be ranked from least to most satisfied, so the data have a natural order. However, the gaps between the categories are not measurable or equal. Data that are ordered but have no meaningful differences are ordinal. Nominal would apply only if the categories had no ranking.

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