Specifications for a part for a DVD player state that the part should weigh betw

Question

Specifications for a part for a DVD player state that the part should weigh between 24.4 and 25.4 ounces. The process that produces the parts has a mean of 24.9 ounces and a standard deviation of .24 ounce. The distribution of output is normal. Use Table-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.)

Within what values will 95.44 percent of sample means of this process fall, if samples of n = 7 are taken and the process is in control (random)? (Round your answers to 2 decimal places.)

Specifications for a part for a DVD player state that the part should weigh between 24.4 and 25.4 ounces. The process that produces the parts has a mean of 24.9 ounces and a standard deviation of .24 ounce. The distribution of output is normal. Use Table-A.

Explanation / Answer

. a. What percentage of parts will not meet the weight specs? Z = 25.4-24.4 / (.24) = 4.1 specs:=0.041% =============================================================================================================================================================================================

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