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 = 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 u is: OA. 1000.00 0.0082. OB. 1000.00 0.0115. OC. 1000.00 0.0165. OD. 1000.00 0.0196.