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Ch. 1 - Introduction to Statistics
Larson - Elementary Statistics: Picturing the World 8th Edition
Larson8th EditionElementary Statistics: Picturing the WorldISBN: 9780137493470Not the one you use?Change textbook
Chapter 1, Problem 1.2.5

Determine whether the statement is true or false. If it is false, rewrite it as a true statement.
More types of calculations can be performed with data at the nominal level than with data at the interval level.

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1
Understand the levels of measurement: Nominal data is the most basic level of measurement, where data is categorized without a natural order (e.g., colors, names). Interval data, on the other hand, is a higher level of measurement where the data is ordered, and the differences between values are meaningful (e.g., temperature in Celsius).
Recall the types of calculations that can be performed at each level: For nominal data, only basic operations like counting frequencies or determining the mode are possible. For interval data, more advanced calculations such as addition, subtraction, and finding the mean are possible because the differences between values are meaningful.
Compare the computational possibilities: Since interval data allows for more types of calculations than nominal data, the statement 'More types of calculations can be performed with data at the nominal level than with data at the interval level' is false.
Rewrite the statement to make it true: A true version of the statement would be 'More types of calculations can be performed with data at the interval level than with data at the nominal level.'
Conclude the reasoning: The original statement is false because nominal data is limited to basic categorical analysis, while interval data supports a broader range of mathematical operations.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Nominal Level of Measurement

The nominal level of measurement is the most basic form of data classification, where data is categorized without any quantitative value. Examples include gender, race, or types of fruit. At this level, data can only be counted or categorized, and no mathematical operations can be performed.
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Interval Level of Measurement

The interval level of measurement involves data that can be ordered and has meaningful differences between values, but lacks a true zero point. Examples include temperature in Celsius or IQ scores. This level allows for a wider range of statistical analyses, including addition and subtraction, making it more versatile than nominal data.
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Statistical Analysis Capabilities

Statistical analysis capabilities refer to the types of calculations and inferences that can be made based on the level of measurement of the data. Nominal data allows for basic counts and mode calculations, while interval data supports a broader range of analyses, including means, standard deviations, and correlation, enabling more complex insights.
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