If Z Is a Standard Normal Variable, Find the Probability

question 21

Multiple Choice

If z is a standard normal variable, find the probability.
-The probability that z is less than 1.13

• A) 0.8907
• B) 0.8485
• C) 0.8708
• D) 0.1292

Conduct hypothesis testing for comparing two or more populations using nonparametric tests.

Understand the assumptions underlying different nonparametric tests.

Apply the Wilcoxon signed rank sum test and interpret its results.

Apply the Kruskal-Wallis test and interpret its results.

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Definitions:

Lymph Node

Encapsulated mass of lymph tissue found among lymph vessels.

Thymus Gland

An immune system gland located behind the sternum that produces T-cells for the adaptive immune response.

Lymphatic Nodule

Small accumulation of lymph tissue lacking a distinct boundary.

CD4

A glycoprotein found on the surface of immune cells such as T helper cells, monocytes, macrophages, and dendritic cells, playing a key role in the immune system’s response to pathogens.