In: Statistics and Probability
Q1) A study is conducted to understand the daily water intake of people from different places. Seven people from Hong Kong, seven people from London and six people from New York are involved in the study. The amount of water these people drink in a day (in centilitre) are recorded :
Hong Kong 25.9 19.9 19.3 19.2 19.9 21.4 22.0
London 18.8 23.4 22.9 20.1 14.8 20.0 22.7
New York 17.6 14.6 14.6 18.8 15 14.5
(a) Test, at the 0.05 level of significance, whether there is a difference among the mean daily water intake from these three places.
(b) State the p-value in (a) and indicate whether it leads to the same conclusion.