A new drug is being developed to treat hypertension among pregnant women who develop gestational hypertension. A researcher documents the systolic blood pressure of 8 women before and after they are treated with the drug in order to determine the efficacy of the drug. Set up and interpret the results of a sign test at the alpha equals .05 level to determine if there is a difference in symptoms before and after treatment.

a) We reject H₀ in favor of H₁, which states the median difference in nausea before and after treatment is not zero because the test static of 0 is less than the critical value of 1 for a sign test with 6 individuals.

b)We fail to reject H₀, which states the median difference in nausea before and after treatment is not zero because the test static of 1 is greater than the critical value of 0 for a sign test with 6 individuals.

c)We reject H₀ in favor of H₁, which states the median difference in systolic blood pressure before and after treatment is zero because the test static of 8 is less than the critical value of 1 for a sign test with 8 individuals.

d)We reject H₀ in favor of H₁, which states the median difference in systolic blood pressure before and after treatment is zero because the test static of 8 is less than the critical value of 1 for a sign test with 8 individuals.