All GRE Subject Test: Math Resources
Example Questions
Example Question #1 : Measures Of Distributions
The purpose of the t test is to do which of the following?
Possible Answers:
Describe the variance within a population.
Compare the significance of multiple variables.
Test the relationship between five or more variables.
Determine the ability of one variable to predict another.
Compare the means of separate populations.
Correct answer:
Compare the means of separate populations.
Explanation:
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
Magdy
Certified Tutor
Certified Tutor
Cairo University, Egypt, Bachelor of Science, Electrical Engineering. New Mexico State University-Main Campus, Doctor of Phil...
Gregory
Certified Tutor
Certified Tutor
Pennsylvania State University-Main Campus, Bachelor of Science, Chemical Engineering. Carnegie Mellon University, Doctor of P...
All GRE Subject Test: Math Resources
Popular Subjects
Statistics Tutors in San Diego, Physics Tutors in San Diego, English Tutors in Dallas Fort Worth, SSAT Tutors in Dallas Fort Worth, GMAT Tutors in Phoenix, SAT Tutors in Boston, Algebra Tutors in Houston, English Tutors in San Francisco-Bay Area, MCAT Tutors in Washington DC, Reading Tutors in Houston
Popular Courses & Classes
ISEE Courses & Classes in Washington DC, MCAT Courses & Classes in San Francisco-Bay Area, ACT Courses & Classes in Los Angeles, ISEE Courses & Classes in San Francisco-Bay Area, GMAT Courses & Classes in Los Angeles, Spanish Courses & Classes in Seattle, SSAT Courses & Classes in New York City, SSAT Courses & Classes in Denver, Spanish Courses & Classes in Los Angeles, LSAT Courses & Classes in Phoenix
Popular Test Prep
SAT Test Prep in Miami, SAT Test Prep in New York City, ISEE Test Prep in Boston, LSAT Test Prep in Miami, GRE Test Prep in Miami, GRE Test Prep in Los Angeles, LSAT Test Prep in San Francisco-Bay Area, ISEE Test Prep in Atlanta, ISEE Test Prep in Philadelphia, SSAT Test Prep in Philadelphia