This Is Considered an Important Issue When Dealing with Preventative

question 3

Multiple Choice

This is considered an important issue when dealing with preventative maintenance. <u></u>

• A)repair costs
• B)frequency
• C)seasonality
• D)timing of breakdown
• E)cost of training

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Definitions:

Ordinal Data

Ordinal data refers to a type of categorical data with a set order or scale to it, but without a consistent difference between each category.

Mann-Whitney Test

A nonparametric test used to assess whether there is a significant difference between two independent samples, an alternative to the t-test when certain assumptions are not met.

Sign Test

A non-parametric test used to determine if there is a significant difference between the median of two dependent samples.

Two-sample T-test

A statistical method to determine if there is a significant difference between the means of two groups, which may have different variances.