The answer is given in the photo below.
The two-way table summarizes data on whether students at a certain high school eat regularly in the school cafeteria by grade level.
If you choose a student at random who eats regularly in the cafeteria, what is the probability that the student is a 10th-grader?
A survey of 4826 randomly selected young adults (aged 19 to 25) asked, "What do you think are the chances you will have much more than a middle-class income at age 30?" The two-way table summarizes the responses.
Choose a survey respondent at random. Define events G: a good chance, M: male, and N: almost no chance. Find
Physical therapy (PT) may be just as successful as traditional surgery when treating a specific type of knee ligament tear in elderly patients. A group of researchers at a large teaching hospital conduct a trial in which patients are randomly assigned to one of three treatments. A "success" means that the subject had regained full range of motion in their knee 6 months post- treatment.
When analyzing their data, which test would be appropriate for these researchers to use?
Chi-square test of/for