A company produces precision 1 meter 1000 mm rulers The actual distribution of lengths of...

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A company produces precision 1 meter 1000 mm rulers The actual distribution of lengths of the rulers produced by this company is Normal with mean and standard deviation o 0 02 mm Suppose I select a simple random sample of four of the rulers produced by the company and I measure their lengths in mm The sample yields 1000 A 90 confidence interval for is OA 1000 00 0 0082 OB 1000 00 0 0115 O C 1000 00 0 0165 O D 1000 00 0 0196

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