$3.$ The amount of soft drink in a sample of $50$ consecutively filled $2-$liter bottles was collected $($Drink$.$xlsx$).$

a$.$ Based on the provided output, how you would characterize the filling process $($i$.$e$.$ does it seem to be consistent or does it need to be adjusted?$)$ Explain

b$.$ What additional information$/$data would be helpful in evaluating the quality of the filling process? Explain