Assume that the distribution of data in Exercise 6 137 was
Assume that the distribution of data in Exercise 6.137 was exactly normally distributed, with a mean of 0.00 and a standard deviation of 0.020.
a. Find the bounds of the middle 95% of the distribution.
b. What percent of the data is actually within the interval found in part a?
c. Using z-scores, determine the percentage of estimated conformance to specification. That is, what percentage of the measurements would be expected to fall within the specification range of 0.000 +-0.030 units?

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