CHAPTER 4

Question 1

data collection method where the researcher intervenes by controlling the conditions that may affect the response variable

Answer 1

experiment

Question 2

YES OR NO

Is the formula for the confidence interval for two means robust? and when is it robust

Answer 2

robust even if there are slight deviations from the assumption of normality

Question 3

the measure of linear relationship of X and Y

Answer 3

Cov(X, Y)