Glucocorticoids are stress hormones, and long-term stress has negative effects on humans (including: insulin resistance, weight gain, and heart disease, among other). Dr. Lannan decided to study the effects of glucocorticoids on mouse blood glucose levels. She thought that exposing mice to glucocorticoids would cause them to have high blood glucose levels. She treated 10 mice with Dexamethasone, a synthetic glucocorticoid, and treated 10 mice with saline solution for 1 week. She then fed the mice, and then collected blood samples from these mice to calculate their blood glucose levels. She got the following results: Saline-treated mice (control): 100, 101, 97, 98, 104, 91. 101, 95, 99, 100 Dexamethasone-treated mice: 110, 105, 124, 97, 103, 112, 118, 127, 109, 106 note: for this experiment, 90-100 is considered "normal", 100-140 is considered "pre-diabetic", and 140+ would be considered "diabetes" Dr. Lannan's hypothesis was which of the following?