SOLUTION: Fifteen (15) widgets are randomly taken from an assembly line and measured for quality control. The widgets have an average weight of 38.5 grams with a standard deviation of 3.5 g

Question 671768: Fifteen (15) widgets are randomly taken from an assembly line and measured for quality control. The widgets have an average weight of 38.5 grams with a standard deviation of 3.5 grams. What is the margin of error of the widgets on the assembly line?

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Fifteen (15) widgets are randomly taken from an assembly line and measured for quality control. The widgets have an average weight of 38.5 grams with a standard deviation of 3.5 grams. What is the margin of error of the widgets on the assembly line?
--------
Note: Standard error is the word used to describe the standard deviation.
Margin of error should have some level of confidence associated with it.
Your problem statement does not.
----
ME = z*s where z relates to a level of confidence.
================
Cheers,
Stan H.
RELATED QUESTIONS
An assembly line puts widgets together with a success rate of 95%. ( i.e. 5% of the... (answered by reviewermath)

An assembly line is supposed to produce defective widgets at a rate of 1 every 75... (answered by stanbon)

Business. A small company has an assembly line that produces three types of widgets. The (answered by ikleyn)

If I produce 250 widgets and 15 are selected for quality control and 2 of the 15 are... (answered by Fombitz)

At the end of a factory assembly line, completed widgets are deposited into a box until... (answered by richwmiller)

Based on previous samples, a quality control officer knows that approximately 6% of all... (answered by ewatrrr)

Widgets coming off an assembly line have a 10% defective rate. Five widgets are selected... (answered by Boreal)

Refining the "What-If-Analysis" to make a better Decision Support System Step 1... (answered by solver91311)

Suppose a company that makes radios is interested in quality control of their factory. As (answered by stanbon)