Specifications for a part for a DVD player state that the part should weigh between 24.7 and 25.7 ounces. The process that produces the parts has a mean of 25.2 ounces and a standard deviation of .20 ounce. The distribution of output is normal. UseTable-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____%

b.Within what values will 99.74 percent of sample means of this process fall, if samples ofn= 10 are taken and the process is in control (random)?(Round your answers to 2 decimal places.)

Lower value ______,Upper value_______