<prompt> A cardiologist wants to study the effect of an antihypertensive drug. He notes down the initial systolic blood pressure mmHg of 50 patients and then administers the drug to them. Which of the following is most appropriate statistical test of significance to measure the change in blood pressure after a weeks treatment ?Paired t-testUnpaired or independent t-testAnalysis of varianceChi-square test  <response>: Statistical Test Alternatives: Parametric - Nonparametric 