What Is Swimmer's Itch

question 28

Multiple Choice

What is swimmer's itch?

• A) Cercariae larvae penetrate human skin, causing dermatitis.
• B) Arthropods deposit larvae in human skin, causing dermatitis.
• C) Dermatitis is caused by Vibrio spp.
• D) Dermatitis is caused by Pseudomonas spp.

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Definitions:

T-statistic

A type of statistic used to estimate the significance of a difference between two sample means, given in terms of standard error.

Alpha

In statistical hypothesis testing, it represents the probability of committing a Type I error; the threshold significance level.

Critical Values

Thresholds in statistical hypothesis testing that determine the cutoff points for rejecting or not rejecting the null hypothesis.

T-statistic

A type of statistic used in hypothesis testing, calculated by dividing the departure of an estimated parameter from its hypothesized value by its standard error.