1. Science can be conducted using experiments or by observation. In both cases, one can deduce causal relationships between input variables and specified outcomes. True or False; Explain

2. You are trying to prepare a research proposal for a new way of reducing side effects of cancer chemotherapy. The aim and objectives of the study is therefore 'liposome formulation development'. True or False; Explain

3. p-values and confidence intervals provide the same type of statistical information. True or False; Explain

4. Ethics committees must ensure that the rights of research participants are protected. True or False; Explain

5. Normally distributed data are analysed by non-parametric statistical analysis. True or False; Explain