A researcher suspects the mean trough (the lowest dosage of medication required to see clinical improvement of symptoms) level for a medication used to treat arthritis is higher than was previously reported in other studies. If previous studies found the mean trough level of the population to be 3.7 micrograms/mL, and the researcher conducts a study among 93 newly diagnosed arthritis patients and finds the mean trough to be 6.1 micrograms/mL with a standard deviation of 2.4 micrograms/mL, for a level of significance of 1%, what should the researcher's conclusion be?

A) We have significant evidence at the 1% level to reject H0 in favor of H1 because -9.64 is less than -2.576 and determine the mean trough level for the medication to be higher than 3.7 micrograms/mL.

B) We have significant evidence at the 1% level to reject H0 in favor of H1 because -9.59 is less than -2.326 and determine the mean trough level for the medication to be higher than 3.7 micrograms/mL.

C) We have significant evidence at the 1% level to reject H0 in favor of H1 because 9.64 is greater than 2.326 and determine the mean trough level for the medication to be higher than 3.7 micrograms/mL.

D) We have significant evidence at the 1% level to reject H0 in favor of H1 because 9.59 is greater than 2.576 and determine the mean trough level for the medication to be higher than 3.7 micrograms/mL.