The Best Way to Care for Your Back Is to Prevent

question 42

Multiple Choice

The best way to care for your back is to prevent back injuries.All of the following are some ways to prevent back injuries EXCEPT:

• A) Carefully lifting heavy objects overhead
• B) Using good posture
• C) Using the legs to lift, not the back
• D) Asking for assistance when a load is too heavy

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Definitions:

Wilcoxon Signed-Rank Test

A nonparametric statistical test used to compare two paired samples to assess whether their population mean ranks differ.

Relative Frequency Distributions

A representation of the number of times each value occurs relative to the total number of values in a data set.

Specified Median

A particular or defined median value within a dataset, often set as a target or comparison benchmark.

Z-Test Approximation

A statistical method used to determine if there is a significant difference between a sample mean and a population mean, applicable when the sample size is large and the population variance is known.