Specifications for a piece of material used in the manufacture of a bed mattress require that the piece be between a Lower and Upper value (in inches) centered around the process mean. The process that produces the piece yields a mean of 12 and a standard deviation of 1 inches. The distribution of output is normal. Within what values will 82.62 percent of sample means fall, if samples of n=10 are taken and the process is in control? 11.569,12.43 11.104,12.895 10.639,13.36 9.709,14.29 None of the Above