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Repeat analyses of the sulphate in ground waters using a gravimetric analysis technique yielded the following...

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Statistics

Repeat analyses of the sulphate in ground waters using agravimetric analysis technique yielded the following data forsuccessive samples: 27.4, 27.6, 25.2, 27.3, 27.3 ppm sulphate.Using 95% confidence criteria which of the following statements istrue?

Select one:

a. 25.2 should be rejected

b. 27.4 should be rejected

c. 25.2 and 27.4 should be rejected

d. no data should be rejected

Answer & Explanation Solved by verified expert
4.0 Ratings (503 Votes)
Correct optiona 252 should be rejectedExplanationFrom the given data the following Table is    See Answer
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