Operations management Quesion
Specifications for a part for a DVD player state that the part should weigh between 25.5 and 26.5 ounces. The process that produces the parts has a mean of 26.0 ounces and a standard deviation of .22 ounce. The distribution of output is normal. Use Table-A.
| a. |
What percentage of parts will not meet the weight specs? (Round your “z” value and final answer to 2 decimal places. Omit the “%” sign in your response.) |
| Percentage of parts | [removed] % |
| b. |
Within what values will 99.74 percent of sample means of this process fall, if samples of n = 12 are taken and the process is in control (random)? (Round your answers to 2 decimal places.) |
Lower value [removed] , Upper value [removed]
