Antibiotics are often administered intravenously for?

The cranial sutures are

a. fibrous joints between the cranial bones. b. cartilaginous joints between the cranial bones. c. synovial joints between the cranial bones. d. uniaxial joints between the cranial bones.

Suppose a study is conducted in which some schools are randomized to follow a new math curriculum and others are randomized to follow a standard curriculum. Suppose the study includes schools of vastly different sizes. At the end of four years, researchers intend to compare students’ scores on a standardized math test using “Student’s” two sample t-test. Why would this test be an inappropriate choice in this case and what might be some better options?

What will be an ideal response?