Specifications for a part for a DVD player state that the partshould weigh between 24.4 and 25.4 ounces. The process thatproduces the parts has a mean of 24.9 ounces and a standarddeviation of .24 ounce. The distribution of output is normal. UseTable-A.
a.What percentage of parts will not meet theweight specs? (Round your “z” value and final answer to 2decimal places. Omit the “%” sign in yourresponse.)
Percentage of parts %
b.Within what values will 95.44 percent ofsample means of this process fall, if samples of n = 7 aretaken and the process is in control (random)? (Round youranswers to 2 decimal places.)
Lower
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