The breaking strength of 80 “test pieces” of a certain alloy is given in the following table, the unit being given to the nearest thousand grams per square inch.Breaking strengthNumber of pieces44 – 463 46 – 482448 – 502750 – 522152 – 545 Calculate the average breaking strength. Calculate the standard deviation of the breaking strength. Calculate the percentage of observations lying between two standard deviations of the mean.

Answered: The breaking strength of 80 “test…

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter29: Tolerance, Clearance, And Interference

Section: Chapter Questions

Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...

See similar textbooks

Related questions

Question

The breaking strength of 80 “test pieces” of a certain alloy is given in the following table, the unit being given to the nearest thousand grams per square inch.

Breaking strength	Number of pieces
44 – 46	3
46 – 48	24
48 – 50	27
50 – 52	21
52 – 54	5

Calculate the average breaking strength.
Calculate the standard deviation of the breaking strength.
Calculate the percentage of observations lying between two standard deviations of the mean.

Expert Solution