Overall, professor salaries barely budged during past year, the Chronicle says, noting that on average, salaries for full-time faculty rose 1.8% in the 2011-12 school year, while inflation was 3%. Tuition, meanwhile, has increased dramatically.
Inferential Statistics. Inferential statistics is concerned with making predictions or inferences about a population from observations and analyses of a sample. That is, we can take the results of an analysis using a sample and can generalize it to the larger population that the sample represents.
There are two major divisions of inferential statistics: 1  A confidence interval gives a range of values for an unknown parameter of the population by measuring a statistical sample. 2  Tests of significance or hypothesis testing tests a claim about the population by analyzing a statistical sample.