(7) The following values were obtained for the nitrate
concentration (mg/L) in a sample of river water: 0.403, 0.410,
0.401, and 0.380. The last measurement is suspect. Based on this
data set only, should it be rejected? Justify your answer.
(8) Three further measurements were added to those given in
question (7) so that the complete results became: 0.403, 0.410,
0.401, 0.380, 0.400, 0.413, and 0.411. Should “0.380” still be
retained/rejected? Justify your answer.
(9) Based on questions (7) and...