BISC104 Study Guide - Comprehensive Final Exam Guide - Dna, Protein, Gene
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Or is it due to chance? (sampling error) Standard error of the mean: the measure of variability in a sample. True mean: the mean that you calculated +/- the standard error. Statistically significant: an observed difference is probably not due to sampling error (chance) Confidence interval- standard error of the mean: The range of values from a samples that has a 95% probability of containing the true population mean. Sampling error: the effect of chance on experiment data. **statistics can"t tell us: statistically significant versus practically significant. Peer review (reviewed by scientists in the field) All living things are composed of cells (fundamental unit of life) Elements: simplest form of matter / fundamental forms of matter. Atoms: smallest unit of an element with all the properties of that element. 8 electrons: atomic number: 8, atomic mass (protons and neutrons): 16.