Use the Following Information to Answer the Question Below

question 13

Multiple Choice

Use the following information to answer the question below.
An elementary school science teacher decided to liven up the classroom with a saltwater aquarium. Knowing that saltwater aquaria can be quite a hassle, the teacher proceeded stepwise. First, the teacher conditioned the water. Next, the teacher decided to stock the tank with various marine invertebrates, including a polychaete, a siliceous sponge, several bivalves, a shrimp, several sea anemones of different types, a colonial hydra, a few coral species, an ectoproct, a sea star, and several herbivorous gastropod varieties. Lastly, she added some vertebrates-a parrotfish and a clownfish. She arranged for daily feedings of copepods and feeder fish.
The clownfish readily swims among the tentacles of the sea anemones; the parrotfish avoids them. One hypothesis for the clownfish's apparent immunity is that they slowly build a tolerance to the sea anemone's toxin. A second hypothesis is that a chemical in the mucus that coats the clownfish prevents the nematocysts from being triggered. Which of the following graphs supports the second, but not the first, of these hypotheses?

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Definitions:

Standard Deviation

An indicator that quantifies how much a dataset is scattered around its mean, demonstrating the distribution range of the data points.

Process Distribution

Represents how the values of a process or system's output are spread or dispersed over a range.

R Charts

Control charts used to monitor the range within samples in order to assess the variability of a process.

Process Capability Index

A statistical measure that quantitatively determines a process's ability to produce output within specified limits.