Chemical Solution Acidities The acidity of a chemical

Chapter 10, Problem 10.3.11

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Chemical Solution Acidities The acidity of a chemical solution can be classied as very high, high, normal, low, and very low. A total of 630 samples of the solution from a production process were obtained, and the acidities were classied as given in DS 10.3.9. (a) Perform a two-sided hypothesis test of the null hypothesis that the probability that a solution has normal acidity is 0.80. (b) It is claimed that the probability that a solution has very high acidity is 0.04, the probability that a solution has high acidity is 0.06, the probability that a solution has normal acidity is 0.80, the probability that a solution has low acidity is 0.06 and the probability that a solution has very lowacidity is 0.04. Are the data consistent with this claim?

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