A university is trying to collect data on their incoming graduate students in order to assess their performance. They collected data from 20 graduate students on their faculty rating given to them over three semesters (frate1, frate2, frate3). This scale ranges from 1 (lowest possible rating) to 5 (highest possible rating). They wanted to analyze if graduate student evaluations improve over the three semesters. What is the dependent variable? What is the independent variable?  How many levels does it have?

The university wanted to see if the GRE scores of their students (gre) were similar or different to that of the national average score. The national average GRE is 1200. Perform a statistical test to evaluate the question. Upload your output file.

If the atomic number of a certain atom is 18, then:

If the atomic number of a certain atom is 18, then:

Lipids can function:

Which of these is the largest, or most general, of the taxonomic categories?

Oxygen (02) is a molecule .

Glycogen is a form of stored:

Imagine a population of monkeys in South America whose habitat has been reduced to the point where only 25 monkeys are left, from the original 6,000. This is an example of:

A keystone species is a species that maintains community structure.