The Presence of Which Diagnostic Criteria Are Used to Confirm

question 22

Multiple Choice

The presence of which diagnostic criteria are used to confirm the diagnosis of irritable bowel syndrome (IBS) ?

• A) Abdominal pain that increases with defecation
• B) Abdominal pain with a change in stool consistency
• C) Mucorrhea
• D) Clay colored stools that float
• E) Bloating

Recognize the differences between parametric and nonparametric statistics.

Formulate null and alternative hypotheses for chi-square tests.

Interpret the results of chi-square tests and other nonparametric tests.

Identify appropriate statistical techniques for various research scenarios.

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Definitions:

Population Means

The average of a set of numerical values from the entire population being studied.

Two Independent Samples

Refers to separate groups of data collected from different populations, where individuals in one sample have no relation to individuals in the other.

Test Statistic

An estimate gained from sample data analysis, applied in hypothesis testing to weigh the decision of rejecting the null hypothesis.

Unequal-variances Test

A statistical test used when comparing two groups that have different variances, often applied in t-tests.