Cheek teeth of extinct primates. Refer to the American Journal of Physical Anthropology (Vol. 142, 2010) studyof the characteristics of cheek teeth (e.g., molars) in anextinct primate species, Exercise. Recall thatthe researchers recorded the dentary depth of molars (inmillimeters) for a sample of 18 cheek teeth extracted fromskulls. The data are repeated in the table and saved in theCHEEKTEETH file. Estimate the true standard deviationin molar depths for the population of cheek teeth in extinct primates using a 95% confidence interval. Give a practicalinterpretation of the result. Are the conditions required fora valid confidence interval reasonably satisfied?
18.12 | 16.55 |
19.48 | 15.70 |
19.36 | 17.83 |
15.94 | 13.25 |
15.83 | 16.12 |
19.70 | 18.13 |
15.76 | 14.02 |
17.00 | 14.02 |
13.96 | 16.20 |
Based on Boyer, D. M., Evans, A. R., and Jernvall, J. “Evidence of dietary differentiation among Late Paleocene–Early Eocene Plesiadapids (Mammalia, Primates).” American Journal of Physical Anthropology , Vol. 142, 2010 (Table A3)
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