The length of conversations between supervisors and workers in a particular manufacturing industry is normally distributed with a mean of 4.0 minutes and a standard deviation of .8 minutes. What percentage of conversations are longer than 4.4 minutes?
Longer than 5 minutes? Longer than 3 minutes? Shorter than 2.5 minutes? Use the normal curve table.
What will be an ideal response?
30.85%; 10.56%; 89.44%; approx 3%.
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