A Researcher Wishes to Compare How Students at Two Different

Multiple Choice

A researcher wishes to compare how students at two different schools perform on a math test.He randomly selects 40 students from each school and obtains their test scores.

A) Either two-sample or paired t-tests will work equally well.
B) Pooled t-test,since the standard deviations of the two populations are likely to be the same.
C) Paired t-test,since the students at the two schools can be paired together.
D) Two-sample t-test,since the samples are independent.
E) Not enough information is given to determine the correct type of test.