Consider a Situation in Which Chris Predicts That an Impending

question 8

Multiple Choice

Consider a situation in which Chris predicts that an impending drainage connection will alter the number of fish in a set of six small lakes. She uses a large net (a seine) and counts the number of fish and obtains the values shown. Based on the 95% confidence interval for the difference in the mean values, what do you predict the results of a paired t-test to be?
?
Number of fish caught in six seines before and after drainage connection.

$\begin{array}{lll}\underline {\text {Vial } }&\underline {\text { Before } }&\underline {\text { After } }\\1 & 24 & 20 \\2 & 35 & 31 \\3 & 64 & 59 \\4 & 51 & 52 \\5 & 25 & 22 \\6 & 48 & 39\end{array}$ ?

• A) Fail to reject the null hypothesis, the storm did not seem to change the number of fish in the lakes.
• B) Fail to reject the null hypothesis, the storm seemed to reduce the number of fish in the lakes.
• C) Reject the null hypothesis, the storm did not seem to change the number of fish in the lakes.
• D) Reject the null hypothesis, the storm seemed to reduce the number of fish in the lakes.

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Definitions:

Ribs

The curved bones which form the rib cage, surrounding the chest enabling lung expansion while protecting thoracic organs.

Fibrocartilage

Cartilage with a matrix of strong collagenous fibers.

Hyaline Cartilage

Hyaline cartilage is a translucent type of cartilage found in areas such as the nose, trachea, and at the ends of bones, providing smooth surfaces for movement at joints.

Elastic Cartilage

Type of cartilage composed of elastic fibers, allowing greater flexibility.