Biostatistics

At the end of the course, students should be able to: 1. discuss the importance of statistics to research; 2. describe scientific methods of collating and summarizing data; and 3. select and apply appropriate statistical tests for testing hypotheses.

Importance and the central role of statistics in research. Review – types of variables, scales of measurement, the concept of sampling, data collection. Reduction, summarization, and presentation of data. Probability. The Normal distribution. Sampling methods. Tests of hypothesis (significant difference, correlation, regression, and many others). Parametric and non-parametric tests. Factors for considerations in choosing a particular statistic such as Student-t-test. Mann- Whitney U, ANOA, MANOVA, Regression Analysis