All of the Following Are True Concerning Emerging Infectious Diseases

question 14

Multiple Choice

All of the following are true concerning emerging infectious diseases EXCEPT

• A)they always involve sporadic cases in endemic areas.
• B)they include newly described infectious agents.
• C)known pathogens develop evolutionary changes.
• D)known diseases spread to new regions or populations.
• E)they result from human exposure to a pathogen due to ecological changes.

Distinguish between equal and unequal variances in two-sample t-tests.

Apply appropriate statistical software functions for t-tests and confidence intervals.

Understand the hypothesis testing for the difference between two population means.

Interpret the conditions under which the t-distribution is applicable.

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Definitions:

Binomial Experiment

An experiment with two outcomes (success and failure) for each trial, with a fixed number of trials and constant probability of success.

Successes

The occurrences of a defined outcome of interest in a series of trials or tests.

Hypergeometric Distribution

A discrete probability distribution that describes the probability of k successes in n draws, without replacement, from a finite population of size N that contains exactly K successes.

Probability Distribution

A mathematical description of a random phenomenon in terms of the probabilities of its outcomes.