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.
Inferential statistics are data which are used to make generalizations about a population based on a sample. They rely on the use of a random sampling technique designed to ensure that a sample is representative.