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The quality control manager of tyre company has sampled tyres and has found the mean lifetime to be 30.214 kna. The population standard deviation is 860 kms. Construct a 5% confidence interval for the man lifetime of this band of tyres. |
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Answer» igihohivopjnkblnlnljlnpjpj Step-by-step EXPLANATION: figohoijobohoupj |
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