A team of efficiency experts intends to use the mean of a random sample of size n= 150 to estimate the average mechanical aptitude of assembly-line workers in a large industry (as measured by a...

Extracted text: A team of efficiency experts intends to use the mean of a random sample of size n= 150 to estimate the average mechanical aptitude of assembly-line workers in a large industry (as measured by a certain standardized test). If, based on experience, the efficiency experts can assume that o = 6.2 for such data, what can they assert with probability 0.99 about the maximum error of their estimate?