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Two machines are used to package laundry detergent. It is

Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi ISBN: 9780073401331 38

Solution for problem 21SE Chapter 6

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi

Statistics for Engineers and Scientists | 4th Edition

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Problem 21SE

Two machines are used to package laundry detergent. It is known that weights of boxes are normally distributed. Four boxes from each machine have their contents carefully weighed, with the following results (in grams):

An engineer wishes to test the null hypothesis that the mean weights of boxes from the two machines are equal. He decides to assume that the population variances are equal, reasoning as follows:

The sample variances are \(s_{1}^{2}=7.00\) for machine 1 and \(s_{2}^{2}=17.33\) for machine 2. The F statistic for testing for equality of population variances is \(F_{3,3}=s_{2}^{2} / s_{1}^{2}=2.48\). The upper 10% point of the \(F_{3,3}\) distribution is 5.39. Since the null hypothesis specifies that the variances are equal, I determine that the P-value is greater than 2(0.10) = 0.20. Therefore I do not reject the null hypothesis, and I conclude that the variances are equal.

a. Has the F test been done correctly?

b. Is the conclusion justified? Explain.

Equation Transcription:

Text Transcription:

s12=7.00

s22=17.33

F3,3=s22/s12=2.48

F3,3

2(0.10)=0.20

Step-by-Step Solution:
Step 1 of 3

Chapter 11: Political Crime and Terrorism  Political Crime o Definition  Illegal acts that are designed to undermine, challenge, or damage an existing government and threaten its survival o Goals  Intimidation  Revolution  The idea of overthrowing the government  Profit  Conviction  Pseudo­conviction o Becoming a Political Criminal  Stage 1: “It’s not right”  Stage 2: “It’s not fair”  Stage 3: “It’s your fault”  Stage 4: “You’re evil” o Categories  Organizational  Occupational  Independent o Election Fraud  Illegal interference with the process of an election  Intimidation  Disruption  Misinformation  Registration fraud  Vote buying o Crimes  Treason  An act of disloyalty to one’s nation  Espionage  Obtaining and dissemination information considered secret or confidential without the permission of the original holder  State political crime  Illegal efforts by the state to maintain power  Torture  Acts that cause severe pain and suffering that is intentionally inflicted on a person to obtain information, punish, intimidate, or coerce them  Terrorism o Political Violence and Terrorism  Terrorists  Individuals or groups that systematically attack or threaten violence for political demands  Guerillas  Fighters who are usually located in rural areas and attack government targets in an effort to unseat or replace the existing government  Insurgents  Groups that engage in armed uprising or revolt against an established civil or political authority  Revolutionary  Nationalist or local groups that engage in civil war against a sovereign power that holds control of land o Contemporary Terrorism  Revolutionary terrorist, political terrorists, eco­terrorism, nationalist terrorism, retributive terrorism, state­sponsored terrorism  Colonialism o Definition  The conquest and direct control of other peoples and their land o Heart of Darkness o Post­Colonialism  A tradition, both academic and artistic, of prejudiced outsider interpretation of nonwestern peoples which constructs a false, but real, relationship between colonizer and colonized  Orientalism, Edward Said  “Can the Subaltern Speak”, Gayatri Spivak  Eisenhower prepared US military to fight aliens  Military industrial complex o Neocolonialism  The use of social, political, economical, and cultural practices to control people and their land  Neoliberalism  The promotion of markets controlled by those in power  Transnational corporate cultural domination (IMF, WTO, etc.)  Cultural appropriation and elimination o Ex: Indian lands  Nationalism = Racism o The belief that humans are subdivided into distinct national groups that are innately different in their social behavior and mental capacities and can be ranked as superior or interior o Why did the US invade Afghanistan Retaliation for 9/11 o Why did the US invade Iraq Threat od Saddam Hussein having access to WMDs  Bringing Colonialism to the US o The Patriot Act (2001)  Allows for warrantless searches and wire taps by federal agents  Federal agents can detain suspected foreign terrorists indefinitely without charge or trial o National Defense Authorization Act (NDAA) (2012); NDAA (2013)  Allows for indefinite detention without charge or trial to any American citizen suspected of terrorism o HR 347 (2012)  Illegal to protest events protected by the Secret Service o Trans­Pacific Partnership (TPP) and Trans­Atlantic Free Trade Agreement (TAFTA)  The giving over of state sovereignty to corporations  Ex: NAFTA  Mexico and Monsanto  He wanted Mexico to plant their seed  Monsanto took farmers to court in Mexico, claiming they were going against NAFTA and the court made famers do such  Political Victims o Anwar al­Awlaki  Made YouTube videos that convinced people to commit heinous acts o Samir Khan o Abdul al­Rahman  Born in Kansas, Anwar was father, looked for father, he was shot  Political Prisoners o Chelsea Manning  Federal prisoner for leaking classified documents to the public o Julian Assange  Spends the last 3­year locked in a hotel room. Founder of Wikileaks o John Kiriakou  CIA agent who reported to the American people that we were torturing people in the prisons. He spent three years in prison  Political Criminals o George Bush and Dick Chaney  Participated in torture  Weeding Out the Rich o Police officers are more lenient when interacting with the well­to­do o Prosecutors “are more likely to pursue full prosecution, file more severe charges, and seek more stringent penalties in cases involving minority defendants than in cases involving nonminority defendants” (pg. 128)  Costs of “Weeding Out the Rich” o White­collar crime is more costly than all the FBI Index crimes combined o White­collar crime is more common than crimes of the poor o White­collar criminals are rarely arrested or charged o White­collar criminals receive lighter sentences given the costs of their crimes 

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Chapter 6, Problem 21SE is Solved
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Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

Since the solution to 21SE from 6 chapter was answered, more than 342 students have viewed the full step-by-step answer. This full solution covers the following key subjects: variances, equal, null, boxes, hypothesis. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331. The answer to “?Two machines are used to package laundry detergent. It is known that weights of boxes are normally distributed. Four boxes from each machine have their contents carefully weighed, with the following results (in grams): An engineer wishes to test the null hypothesis that the mean weights of boxes from the two machines are equal. He decides to assume that the population variances are equal, reasoning as follows:The sample variances are \(s_{1}^{2}=7.00\) for machine 1 and \(s_{2}^{2}=17.33\) for machine 2. The F statistic for testing for equality of population variances is \(F_{3,3}=s_{2}^{2} / s_{1}^{2}=2.48\). The upper 10% point of the \(F_{3,3}\) distribution is 5.39. Since the null hypothesis specifies that the variances are equal, I determine that the P-value is greater than 2(0.10) = 0.20. Therefore I do not reject the null hypothesis, and I conclude that the variances are equal.a. Has the F test been done correctly?b. Is the conclusion justified? Explain.________________Equation Transcription:Text Transcription:s12=7.00s22=17.33F3,3=s22/s12=2.48F3,32(0.10)=0.20” is broken down into a number of easy to follow steps, and 154 words. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4. The full step-by-step solution to problem: 21SE from chapter: 6 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM.

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