what is the purpose of ols in r ols hypothesis test what is the function of the ols model? which model to check for null hypothesis in r what is the purpose of a parallel test ols? if the hypothesis is null the matrix is used to test which is a true linear model based on __________ what is the test for a parallel model ols? what is the equation for linear contrast? how do you get a test for it? ols test definition test of the model with the matrix which statement best describes the test that is not true? how to test in r with ols what is the function ols what is the function of the matrix in a linear model why not use the matrix for the hypothesis test in r how to test hypothesis in r what is the t-value on test if a test is not true why is this statement used? r what program do you use to test a linearity test