EXAMPLE#(3).
It has been found from experience that the mean breaking strength of a particular
brand of thread is 9.63N with a standard deviation of 1.40N. Recently a sample of 36 pieces of thread
showed a mean breaking strength of 8.93N. Can we conclude that the thread has become inferior?
Answers
Answered by
0
Answer:
It has been found from experience that the mean breaking strength of a particular
brand of thread is 9.63N with a standard deviation of 1.40N. Recently a sample of 36 pieces of thread
showed a mean breaking strength of 8.93N. Can we conclude that the thread has become inferior?
Similar questions