Problem regarding the mechanical measurements

Reference no: EM131032478

Problem:

Mechanical measurements on supposedly identical objects usually vary. The variation often follows a Normal distribution. The stress required to break a type of bolt varies Normally with mean 75 kilopounds per square inch (ksi) and standard deviation 8.3 ksi.

Required:

(i) What percent of these bolts will withstand a stress of 90 ksi without breaking?

(ii) What range covers the middle 50% of breaking strengths for these bolts?

Reference no: EM131032478

Questions Cloud

What ultimately were these codes designed to do : During Reconstruction, Black Codes were enacted in several former states in the Confederacy. A Republican controlled Congress would later react to suppress these codes - What ultimately were these codes designed to do?

Forman company has contracted to build a dam over a period : Forman Company has contracted to build a dam over a period of 4 years for $3,000,000. Information relating to the performance of the contract is summarized as follows:

Provide background information about education : Provide an in-depth definition and components about the topic. Provide background information about the topic (developed from the 3 resources discovered). Apply 3 different sociological theories to the topic.

The back-end database : Three (3) page Word document that describes the front-end, the user interface, and the back-end database and how the requirements were met, and a full description of client needs and how the application supported the requirements.

Problem regarding the mechanical measurements : Mechanical measurements on supposedly identical objects usually vary. The variation often follows a Normal distribution. The stress required to break a type of bolt varies Normally with mean 75 kilopounds per square inch (ksi) and standard deviati..

Explain what made you want to research that topic : LING 102: Spring 2016 - Research Paper Presentation - You will need to consider the sequence of the information you will share to make sure it will occur in a logical fashion. Also consider transition use.

Prepare a comprehensive report directed to an australian asx : prepare a comprehensive report directed to an Australian ASX Top 100 listed corporation detailing a critical analysis of the effectiveness of the corporation to meet the obligations of the conceptual framework of accounting

Did the school follow the correct disciplinary procedures : Did the school follow the correct disciplinary procedures? Discuss why or why not. Would you have done anything differently, according to IDEA's procedures?

What is the final velocity of the masses : A mass of .6 kg moving with a velocity of 2.4 m/s in the positive direction experiences a totally inelastic collision with a mass of 1.1 kg. What is the final velocity of the masses?

User Account

All Pages