Saturday
December 20, 2014

Homework Help: statistics

Posted by sunil on Friday, October 29, 2010 at 7:04am.

question- a packaging device is set to fill detergent powder packets
with a mean weight of 5 kg .the standered deviation is known to be
0.01kg.these are known to drift upward over a period of time due to
machine fault,which is not tolerable.a random sample of 100 packets is
taken and weighed.this sample has a mean weight of 5.03 kg and a
standard deviation of 0.21 kg .can we calculate that the mean weight
produced by the machine has increased ? use 5%level significance.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - a packaging device is set to fill detergent powder packets with a ...
Statistics - A packaging device is set to fill detergent power packets with a ...
marketing research - A packaging device is set to fill detergent power packets ...
statistics/probability - QUESTION- machines are used to pack sugar into packets ...
statistics - Machines are used to pack sugar into packets supposedly containing ...
Statistics - Machines are used to pack sugar into packets supposedly containing ...
SMU - Ans:- Machines are used to pack sugar into packets supposedly containing 1...
Statistics - The amount of fill(weight of contents)put into a glass jar of ...
statistics - a manufacturer of detergent claims that the contents of the boxes ...
statistics - a manufacturer of detergent claims that the contents of the boxes ...

Search
Members