SOLUTION: An industrial engineer intends to use the mean of a random sample of size n = 150 to estimate the average mechanical aptitude (as measured by a certain test) of assembly line w

Question 1011520: An industrial engineer intends to use the mean of a random
sample of size n = 150 to estimate the average
mechanical aptitude (as measured by a certain test) of
assembly line workers in a large industry. If on the b
basis of experience, the engineer can assume that α =
6.2 for such data, what can be assert with probability
0.99 about the maximum size of his error?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
An industrial engineer intends to use the mean of a random
sample of size n = 150 to estimate the average
mechanical aptitude (as measured by a certain test) of
assembly line workers in a large industry. If on the b
basis of experience, the engineer can assume that α =
6.2 for such data, what can be assert with probability
0.99 about the maximum size of his error?
-----------

ME = 2.5758*6.2/sqrt(150) = 1.304
-----
Cheers,
Stan H.]
RELATED QUESTIONS
An industrial engineer intends to use the mean of a random sample of size n = 150 to (answered by ikleyn)

Hi, I'm stuck with this question, please help me :( An economist wishes to estimate the... (answered by ewatrrr)

To estimate the average time it takes to assemble a certain computer... (answered by ikleyn)

To estimate the average time it takes to assemble a certain computer component the... (answered by Boreal)

A quality engineer in a light bulb factory is planning a study to estimate the average... (answered by stanbon)

The operations manager of a sugar mill in Chesterville wants to estimate the average size (answered by Boreal)

explain why a random sample of size 50 is to be preferred to a random sample of size 35... (answered by Boreal)

Use the given information to find the minimum sample size required to estimate an unknown (answered by stanbon)