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Consider a Situation in Which Chris Predicts That an Impending

Question 13

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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.

Vial  Before  After 124202353136459451525252864839\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 & 28 \\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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