2 The volume, in millilitres, of lemonade in mini-cans may be assumed to be normally distributed with a standard deviation of 3.5. The volumes, in millilitres, of lemonade in a random sample of 12 mini-cans were as follows.

1. Construct a \(98 \%\) confidence interval for the mean volume of lemonade in a mini-can, giving the limits to one decimal place.
2. On each mini-can is printed " 150 ml ". Comment on this, using the given sample and your confidence interval in part (a).
3. State why, in part (a), use of the Central Limit Theorem was not necessary.