The mean median and standard deviation.
Answer to Problem 4.70P
The values of mean, median and standard deviation are
Explanation of Solution
Given:
The number of sample subsets are
The number of measured values in each sample subset are
Formula used:
The expression foraverage of each subset of samplesis given as,
Here,
The expression formean or average of averages is given as,
The expression formedian is given as,
Here,
The expression forstandard deviation is given as,
Here,
Calculation:
The average of the first subset can be calculated as,
The average of the second subset can be calculated as,
The average of the third subset can be calculated as,
The average of the fourth subset can be calculated as,
The average of the fifth subset can be calculated as,
The average of the sixth subset can be calculated as,
The mean can be calculated as,
For the calculation of median arrange the data in increasing order,
The median can be calculated as,
Standard deviation can be calculated as,
Conclusion:
Therefore, the values of mean, median and standard deviation are
Want to see more full solutions like this?
Chapter 4 Solutions
EBK MANUFACTURING PROCESSES FOR ENGINEE
- A tension test was conducted for a cylindrical specimen of stain-less steel having an initial diameter (D) of 15.55 mm. Calculate the percentage reduction in area if the final diameter of the specimen (d) is 7.35 mm. Select one: O a. 76.66% O b. 78.66% O c. 77.66% O d. 79.66%arrow_forwardExplain about these graphs and discuss how they are helpful in engineering. (TENSILE TEST)arrow_forwardAnswer on a piece of paper WITH COMPLETE AND CLEAR UNITS/CONVERSION FACTORS.arrow_forward
- Please help me answer this correctly ASAP. Please write the solution on paper. Thank you. Note: The tolerance is ± 1 in the third significant digit.arrow_forwardResearch and identify one type of geometric tolerances (besides obvious specs like length, distance, diameter, etc.) that can be called out on a technical drawing. Explain how this tolerance is definedarrow_forwardShow step by step solution asap I will rate Positively .arrow_forward
- What is relation between product tolerance (engineering tolerance) and process variation.? Explain in some details showing some representation. Analyze the following study in terms: Components of variations and their contributions X Chart and R Chartarrow_forwardNeeds Complete solution with 100 % accuracy.arrow_forwardExplain at least three reasons why hardness testing is generally used for product quality control in industrial sites.arrow_forward
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY