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# Parametric or Nonparametric Data

1. The average life span of a dog is proportational to the amount of calcium consumed.
P- Parametric data or NP - nonparametric data?

2. A study of vehicle accidents on a military installation compared to driver's rank.
P- Parametric data or NP - nonparametric data?

#### Solution Preview

According to researcher, it is not always easy to know whether the data should be treated as parametric or non-parametric, and where possible always look at how other researcher have treated similar data. (Eachus, n.d, from http://www.chssc.salford.ac.uk/healthSci/resmeth2000/resmeth/para&non.htm). It also often depends on the type of study as well.

Let's take a closer look.

1. The average life span of a dog is proportionals to the amount of calcium consumed.
P- Parametric data or NP - nonparametric data?

By definition, this study could be nonparametric data.

For example, nonparametric statistic - a statistic computed without knowledge of the form or the parameters of the distribution from which observations are drawn. This relationship was computed after the data was collected, another characteristic of nonparametric data.

2. A study of vehicle accidents on a military installation compared to driver's rank.
P- Parametric data or NP - nonparametric data?

By definition, this study is parametric data.

The ...

#### Solution Summary

This solution responds to the two questions concerning parametric or nonparametric data questions. It also provides detailed explanations and references.

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