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Answer to Question #42678 in Statistics and Probability for Ru-Wayne

Question #42678
The desired percentage of silicon dioxide in a certain type of cement is 5. A random sample of 36 specimens gave a sample average percentage of 5.21 and a sample standard deviation of 0.38. Use a significance level of 0.01 and test whether the sample result indicates a change in the average percentage.
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Expert's answer
2014-05-22T01:09:43-0400
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