Specifications for a piece of material used in the manufacture of a bed mattress require that the piece be between 11.24 and 12.76 inches. The process that produces the piece yields a mean of 12 and a standard deviation of 0.4 inches. The distribution of output is normal. What percentage of the pieces will meet the length specs? Question 4 options:

2.87 %

94.25 %

72.86 %

97.12 %

None of the Above