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Experimental design homework in calcium content ( 2) A chemist makes five determinations on five randomly selected batches of raw material furnished by his supplies

Experimental design homework

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in calcium content ( 2) A chemist makes five determinations on five randomly selected batches of raw material furnished by his supplies . The resulting data are shown below. Batch 1 Batch 2 Batch 3 Batch 4 Batch 5 23.46 23.59 23.51 23.28 23.29 23.48 23.46 23.64 23.40 23.46 23.56 23.42 23.46 23.37 23.37 23.39 23.49 23.52 23.46 23.32 23.40 23.50 23.49 23.39 23.38 ( a) Is there significant variation in calcium content from batch to batch? Use d= 0. 05 . ( Test the hypothesis Ho: OZ = 0 VS. HI : ozzo ) ( b) Estimate the two variance components. ( Estimate Oz and 52 )

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