Mercury analysis results performed on a drinking water sample are given in the table below. Analysis No 1 2 3 4 15 6 Mercury (ppb) 54.1 55.5 63.8 54.4 55.8 57.9 Which value is the average with the 90% confidence interval? (t = 2.02, s= 3.63) a) 56.9 + -3.0 b) 56.9 + -2.8 55.9 + -3.O 56.9 + -3.1 nc hiralc
Mercury analysis results performed on a drinking water sample are given in the table below. Analysis No 1 2 3 4 15 6 Mercury (ppb) 54.1 55.5 63.8 54.4 55.8 57.9 Which value is the average with the 90% confidence interval? (t = 2.02, s= 3.63) a) 56.9 + -3.0 b) 56.9 + -2.8 55.9 + -3.O 56.9 + -3.1 nc hiralc
Chapter7: Statistical Data Treatment And Evaluation
Section: Chapter Questions
Problem 7.16QAP
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