In this example, d is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the systolic blood pressure reading before the drug was taken minus the reading after the drug was taken. What is the correct decision for this hypothesis test? Answer 1. Since the P-value is less than the significance level reject H0. There is sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure. 2. Since the P-value is greater than the significance level reject H0. There is sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure. 3. Since the P-value is less than the significance level reject H0. There is not sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure. 4. Since the P-value is equal to the significance level reject H0. There is not sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure