Which of the following statements belongs in the Introduction of a scientific paper?
A. Intruder crickets were marked on the thorax with a paint pen in order to distinguish them from the resident crickets.
B. It is predicted that males that have been residents in an artificial territory for several days will win pairwise contests more often than will intruders.
C. The null hypothesis for the statistical test was that wins would be no more likely for residents than they would be for intruders (50:50).
D. A p-value of 0.05 or less for the statistical test was considered sufficient evidence to reject the null hypothesis.
Answer: B. It is predicted that males that have been residents in an artificial territory for several days will win pairwise contests more often than will intruders.
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