Researchers Are Interested in the Effects of Bacterial Probiotics on Gastrointestinal

question 61

Multiple Choice

Researchers are interested in the effects of bacterial probiotics on gastrointestinal disorders and ____.

• A) congenital heart disease
• B) prematurity
• C) cancer
• D) renal failure

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Definitions:

Reject Null Hypothesis

To conclude, based on statistical analysis, that there is enough evidence to support the alternative hypothesis over the null hypothesis in a study.

Covariance

A measure indicating the extent to which two variables change in tandem. It shows whether increases in one variable correspond with increases (positive covariance) or decreases (negative covariance) in the other one.

Pearson Correlation

A measure of the linear correlation between two variables, represented by a value between -1 and 1.

Null Hypothesis

Re-stated: The hypothesis that assumes no real effect, variance, or difference within the scope of the experimental and observational study parameters.