The Number of T Cells Drops to Below 200 Cells/microliter

question 44

Multiple Choice

The number of T cells drops to below 200 cells/microliter in which phase of HIV infection?

• A) initial phase
• B) phase 1
• C) phase 3
• D) phase 2
• E) asymptomatic phase

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Definitions:

P-value

The likelihood of getting test outcomes that are at least as significant as those seen in the test, under the assumption that the null hypothesis holds correct.

Z

In statistics, typically refers to a standard score indicating how many standard deviations an element is from the mean.

Null Hypothesis

A hypothesis in statistical analysis that assumes no significant difference or effect exists between certain characteristics, conditions, or variables.

Significance Level

The significance level, also known as alpha, is a pre-determined threshold for statistical significance, used to decide whether an observed effect is not due to chance.