Approaches to solving questions

What does it mean if

Covariance matrix .... they are independent (=0) or dependent (≠0).

Q-Q plot

your confidence for all intervals simultaneously is 95%.

Find the sample mean vector and the covariance matrix.

Find 95% confidence intervals for the population means

One at a time multiplier

Bonferroni multiplier

Simultaneous confidence region multiplier

Specify the conditional distribution of X1, given that X3 = x3.

Specify the conditional distribution of X1, given that X2 = x2 and X3 = x3.

Correlation and partial condition given....

Mean

Covariance matrix

Approximate distributions

What is

Multivariate normality

Assess mutlviariate normality