machines malfunction. The problem is to compute the 95% confidence interval on π‚ the proportion that malfunction in the population. Solution: The value of p is 12/40 = 0.30. The estimated value of σp is = 0.072. A z table can be used to determine that the z for a 95% confidence interval is 1.96. The limits of the confidence interval are therefore: Lower limit = .30 - (1.96)(0.072) = .16 Upper limit = .30 + (1.96)(0.072) = .44. The confidence interval is: 0.16 ≤ π ≤ .44. Q2. A manager at
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are confidence intervals? It is explained as a range of values so defined that there is a specified probability that the value of a parameter lies within it. The next question to be asked is how we form a confidence interval. The purpose of taking a random sample from a lot or population and calculating a statistic‚ such as the mean from the data‚ is to estimate the mean of the population. How well the sample statistic estimates the underlying population value is always an issue. A confidence interval
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concept of self in communication from psycology to interpersonal communication? Self:- A person’s self-concept is his knowledge about himself. Similar to how he can know other people‚ and know facts about how they tend to think‚ and what they enjoy doing‚ and what their temperament is like‚ he can also know these things about himself. Some people have much stronger self-concepts than others‚ probably because possessing a self-concept in much detail requires reflection on one’s own self and behavior
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READING TO SPEAK: INTEGRATING ORAL COMMUNICATION SKILLS. The article I chose deals about the lack of practice in speaking skill in language teaching‚ and although it refers to Chinese schools‚ I found it relevant because the situations it refers to are very similar to the ones we face in most of the schools in our country. Since a very powerful motivation to learn a second language is to be able to converse with speakers of that language‚ speaking seems to be the most important skill
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establish positive communication behaviors. It is vital to learn from diverse social groups to avoid misinterpretation and misconception. Lin and Rancer‚ 2003‚ both argued the importance of motivation and the desire to learn language skills of another culture. Motivation is the desire or willingness for someone to accomplish something. Both Lin and Rancer believed people need to be motivated to learn language skills to avoid communication issues. There cannot be effective communication between messages
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Should the 2nd amendment give citizens the right to own assault weaponry? Introduction: Does anyone know what people were the first to invent guns? The Chinese were the first people to invent guns. The first hand gun was called the Hand Cannon. What the second amendment means. The Second Amendment of the United States Constitution‚ which is part of the Bill of Rights‚ declares a well regulated militia as being necessary to the security of a Free State‚ and prohibits infringement of "the right
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Confidence Intervals Consider the following question: someone takes a sample from a population and finds both the sample mean and the sample standard deviation. What can he learn from this sample mean about the population mean? This is an important problem and is addressed by the Central Limit Theorem. For now‚ let us not bother about what this theorem states but we will look at how it could help us in answering our question. The Central Limit Theorem tells us that if we take very many
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Merveille Agbodjogbe SPCH101 02/28/15 Speaking With Confidence The ability to speak with competence and confidence will provide empowerment. It will give me an edge that less skilled communicators lack. I’ve learned that my fear of public speaking is the most common of all phobias. It is a form of performance anxiety in which a person becomes very concerned that they will look visibly anxious‚ maybe even have a panic attack on stage. My fear of public speaking has to do with the fact that I am
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Communication is an imperative in our organization between team members making decision. It is gathering information and ideologies in a group to approach our goal. My self-test approach was 49 out of 80 scores. Ultimately‚ I am strongly believed that the most effective ways for communication in the organization are: daily communication in working places‚ and technological intercommunication network. Every organization needs to communicate one another to perform well their projects. Cited in (Jeremy
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34. Information from the American Institute of Insurance indicates the mean amount of life insurance per household in the United States is $110‚000. This distribution follows the normal distribution with a standard deviation of $40‚000. a. If we select a random sample of 50 households‚ what is the standard error of the mean? b. What is the expected shape of the distribution of the sample mean? c. What is the likelihood of selecting a sample with a mean of at least $112‚000? d. What is the likelihood
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