Hypothesis Testing (Z-Test and t-Test) A manufacturer packs sugar into plastic bag. Each bag is to hold 5 kilos of sugar. When the production is under control, each bag contains on the average 5 kilos. At one period, a sample of 17 bags was taken to check the process and was found to weigh 5.6 kilos with a standard deviation 0f 0.75 kilos. Is the manufacturing process under control? Use Level of Significance = 0.01.

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