
For: "The diameter of optical fibre produced by a manufacturer is known to be normally distributed, with a mean of .502mm and standard deviation of .0025mm. The specification requires that the diameter of the fibre be equal to .5mm (plus or minus) .005mm. What proportion of the manufacturer's production will fail to meet the specification?" : Do you create a normal distribution curve? For: "The diameter of optical fibre produced by a manufacturer is known to be normally distributed, with a mean of .502mm and standard deviation of .0025mm. The specification requires that the diameter of the fibre be equal to .5mm (plus or minus) .005mm. What proportion of the manufacturer's production will fail to meet the specification?" : Do you create a normal distribution curve? @Mathematics
8 years ago
its known to be normally distributed, so yeah, id make a curve
8 years ago
Then just find the probability of the outer?
8 years ago
looks like it to me, but thats just a hunch
8 years ago
find zscores and probs for .505; and .495
8 years ago
thank you
8 years ago
i gotta wonder tho since its asks for proportion instead of probability; its basiclly the same steps tho
8 years ago
It's just trying to be complex
8 years ago
:) prolly lol
8 years ago
nah
8 years ago
