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{"ops":[{"insert":"The National Steel Company is manufacturing steel wire with an average strength of 50 kilos. The laboratory tests a\nrandom sample of 18 pieces of wires and finds that the mean strength is 48 kilos and the standard deviation is 10 kilos.\nAre the results in accordance with the hypothesis that the company produces steel wire with an average strength of 50\nkilos? Use 0.10 level of significance.\nHo\nHa\nOne-Tailed or Two-Tailed\nLevel of Significance\nCritical Value\nDraw Critical Region\nDecision Rule\nTest Statistic\nDecision\nInterpretation\n"}]}
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