Given the Following ABO Phenotyping Data

question 1

Multiple Choice

Given the following ABO phenotyping data:
What could be a plausible explanation for this discrepancy?

• A) T-activation of red cells
• B) Group O blood products given to group A
• C) Rouleaux formation
• D) Positive direct antiglobulin test

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Definitions:

Alpha (α)

A threshold value used in statistics that represents the probability of incorrectly rejecting a true null hypothesis (Type I error).

P-value

The probability of observing a statistical summary (for example, the difference in means between two groups) at least as extreme as the one observed, under the assumption that the null hypothesis is true.

Null Hypothesis

A proposition in statistics that implies no association or difference between groups or variables.

Alternative Hypothesis

A statement that directly contradicts the null hypothesis by stating there is a statistically significant effect or difference.