Science Homework Help

(a) A researcher found that students who had more absences obtained poorer grades. Identify and discuss the correlation coefficient and draw a scatterplot to reflect the above findings of the researcher. Be sure to state and depict the strength, effect size and direction of the correlation.

(b) A researcher wants to examine the effects of two (2) antihypertensive drugs (Nifedipine and Felodipine) on reducing patients’ blood pressure level by administering the drugs at two intervals, after four (4) weeks and after eight (8) weeks. Identify and discuss the experiment as a factorial notation. Be sure to state the levels of the independent variables, the dependent variable, the main effect, and the interaction effect of the above experiment.