QUESTION 4 1 points Save Answer A researcher interested in the academic qualifications of Dartmouth students wants to see if the SAT scores of Dartmouth students are higher than the national average. Knowing the national average SAT score, she obtains a small but representative sample of 13 Dartmouth students. O a. One sample z test O b. One sample t test O C. Independent samples t test O d. Dependent samples t test QUESTION 5 1 points Save Answer Dr. lan Simh has developed a drug designed to stimulate synaptic connections in the prefrontal cortex. In an effort to test cognitive enhancement, Dr. Simh tests two groups of chimpanzees on a series of problem solving tasks: one group with his new drug, and one without. O a. One sample z test O b. One sample t test O C. Independent samples t test O d. Dependent samples t test