When finish the step t.test(difference)$conf.int and come to the next step, it always comes out this error message, "Error in editor(file = file, title = title) : argument "name" is missing, with no default", and leaving swirl, "Leaving swirl now. Type swirl() to resume."
When finish the step t.test(difference)$conf.int and come to the next step, it always comes out this error message, "Error in editor(file = file, title = title) : argument "name" is missing, with no default", and leaving swirl, "Leaving swirl now. Type swirl() to resume."