1.
a) As increases from 4 to 6 to 8, the graph flattens out; gets wider and smaller in height. Increase in
correlates with increasing variation hence the filling process becomes more inefficient. The percentage
of under filled bottles would stay the same as the mean is constant.
b) The graph stays the same in size and shape but shifts to the right as mean increases from 300 to 304
to 306 mL. There will be increasing amount of overfilled bottles during the filling process as mean
increases. The percentage of under filled bottles decrease as the graph shifts to the right without the
width changing.
