SOLUTION: By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.5 seconds.
Algebra ->
Probability-and-statistics
-> SOLUTION: By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.5 seconds.
Log On
Question 324662: By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.5 seconds.
Answer each of the following (show all work):
(A) How many measurements should be made in order to be 99% certain that the maximum error of estimation will not exceed 1 second?
(B) What sample size is required for a maximum error of 2 seconds? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.5 seconds.
Answer each of the following (show all work):
(A) How many measurements should be made in order to be 99% certain that the maximum error of estimation will not exceed 1 second?
------
n = [zs/E]^2
---
n = [2.5758*3.5/1]^2 = 82 when rounded up
================================
(B) What sample size is required for a maximum error of 2 seconds?
n = [2.5758*3.5/2]^2 = 21 when rounded up
==============================
Cheers,
Stan H.
(