Task 1: (10 mark) Draft a measurable objective of your research interest. (0.5 mark) Define which study design suits the best to achieve the above objective of the study. (0.5 mark) Mention the outcome variable and its nature (binary, nominal, ordinal, continuous, discrete): (1 mark) Mention the exposure variable and its nature (binary, nominal, ordinal, continuous, discrete): (for analytic study designs) *E.g. Variable of interest: Body mass index (kg/m2). It will be measured as weight in kg divided by height in m2. Participants will be classified in 4 categories as: a) underweight: BMI<18 kgm2, b) normal weight: bmi between 18-23 c)obese: 23-27 d) overweight:> 27 kg/m2. Cite the previous literature from which parameter(s) would be taken for sample size calculation