shapiro-francia error shakro-francia normality test error what test is shakro-francia errors what is shakero spancia test error can i run shapiro-francia test how to test for residuals with lmer how many observations does shakro spancia test for what is shapiro-francia test error mean what is the error in the shakro francia test what is the shakero-francia test when a normality test is shakro-francia error what is the error with the shapro-francia test when does the shapiro-francia test fail what is the error in a shakro spania test shapiro-francia test error which test gives a error when running shatro-francia how many observations in a normality test shakro france test lmer what is shazpiro spanio test error what is shapro-francia test error?