Technician A Says Mineral Oil Is Compatible with R-12

question 7

Multiple Choice

Technician A says mineral oil is compatible with R-12.Technician B says mineral oil is compatible with R-134a.Who is correct?

• A) Technician A only
• B) Technician B only
• C) Both A and B
• D) Neither A nor B

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Definitions:

Nonparametric Methods

Nonparametric methods are statistical techniques that do not assume a specific distribution for the data, often used when data do not meet the assumptions required by parametric methods.

Ordinal Data

A type of categorical data in which the categories have a natural order or ranking, but the intervals between the categories are not necessarily equal.

Wilcoxon Signed Rank

A nonparametric statistical test used to compare two related samples, matched samples, or repeated measurements on a single sample to assess whether their population mean ranks differ.

Normal Approximation

A method used to approximate the distribution of various statistics to a normal distribution under certain conditions, particularly useful for large sample sizes.