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# Hypothesis Testing, ANOVA, Lab Comparison

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Seven labs were used to measure the amount of chlorpeniramide malcate in tablets. The aim was to study the consistency between the labs and the variability of the measurement process. Each lab makes 10 measurements of a chemical mixture from ground tablets. The ANOVA table is given attached.

a) Complete the table. What can you conclude at the 5% level? State clearly your hypotheses.

b) With Yij representing the jth value of the ith sample. Explain the identity and the reasoning behind ANOVA in the attachment.

##### Solution Summary

The solution uses ANOVA and hypothesis testing to compare a number of labs and their measurement processes.

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