Describe the difference between correlation and simple regression. When would you use regression instead of just calculating a correlation coefficient?

You are interested in studying whether Tea, Coffee, or Juice has more caffeine per cup. In this scenario, the factor is _______ and the number of levels is ______.

A researcher is using a chi-square goodness of fit test to determine whether there is an equal distribution of freshmen, sophomores, juniors, and seniors enrolled in STATS 101. This researcher surveys 200 students. What is the expected frequency for sophomores enrolled in this class?

What does R-squared (R²) represent in simple regression?

Your regression equation for “hours studied” predicting the outcome, “test score,” is: Y = 50 + 3x. For a student who has studied for 4 hours, what is his/her predicted test score?  

What is the brand name for dutasteride?

What is the brand name for dicyclomine?

What is the generic name for Requip?

What is the generic name for Temovate?

What is the generic name for Zyprexa?