josephinekiim

08.04.2021 • 

Mathematics

Researchers surveyed 50 students (group 1) setting in the back half of the classroom and 15 students (group 2) sitting in the front half of the classroom. The researcher recorded their seating location and their GPA. The goal of the study was to see if, on average, the students that sat in the back half of the classroom have lower GPAs than those that sat in the front half. The sample statistic is -0.170 with standard error 0.132. The resulting p-value is 0.099. Correctly complete the p-value interpretation below: The chance of seeing a sample of or any value is 0.099, assuming the difference in population means is

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mtzann1568

06.01.2020

Mathematics

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Morphological changes to function appendages arise because of different requirements this was termed by Darwin as adaptive radiation. For example darwins finches - each birds beak was slightly different in shape - this allowed them to exploit a different food source, thereby reducing intra specific competition. As for fins, these vary depending on the swimming requirements of the organism; balance, agility or speed may be selected for.

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