An educational psychologist is comparing two instructional approaches. She teaches people using visual aids for Approach A, and uses verbal materials for Approach B, and then gives a test after using...

An educational psychologist is comparing two instructional approaches. She teaches people using visual aids for Approach A, and uses verbal materials for Approach B, and then gives a test after using each approach. The same individuals were used as students of both instructional approaches. She thinks people learn differently when they have visual aids than verbal materials.

Approach A:
Mean: 26.0

Std. Dev: 8.5

N: 16

Approach B:
Mean: 27.0

std. dev: 10.0

N = 16

Difference A-B:
mean : -1.0

Std. Dev: 14.0

N = 16

A). What is the type of test you will use? (z-test, single-sample t-test, paired-samples t-test, or independent samples t-test) and why (what information provided in the problem)

B). What are the hypotheses (Be Specific)