A scientist was interested in studying if students beliefs about illegal drug use changes as they go through college. The scientist randomly selected 104 students and asked them before they entered college if they thought that illegal drug use was wrong or o. K. Four years later, the same 104 students were asked if thought that illegal drug use was wrong or o. K. The scientist decided to perform mcnemar's test. The data is below. What is the test statistic?.

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

The y-value if a data point corresponding to x1

Which of the following is a presentation cue? a. crossing your arms b. mumbling c. repeating words d. whistling