Basic Statistics for Business and Economics Essay Example for Free

Basic Statistics for Business and Economics Essay Over the last four weeks of being in the QNT/351 course our team has learned a lot about researching a hypothesis and understanding the mean. The hypothesis testing begins with the statement and the assumption that determines the population of the mean, (Lind, 2011, p.288.). There are five steps taken which include; state the hypothesis, select level of significance for it, identify the test statistics, formulate decision rule, and take a sample to arrive at a decision. On the contrary, however, McClave, 2011 states that there are seven steps including; null hypothesis, alternate hypothesis, test statistic, rejection region, assumptions, experiment and calculation of test statistic, and the conclusion. With setting a hypothesis and testing it is important to understand the mean and how to compare it amongst two or more groups. With testing the mean with multiple groups, the data collected is used to help determine the probability of a given amongst two distinct groups being analyzed which have the same or equal variances. This info it all based off the given hypothesis and should result in proving the null hypothesis stated. When looking at the mean the distance noted between the hypothesis and the mean placed is a value given as a result of the probability of occurrence. When analyzing and testing the means of the two groups we use the variance analysis. An example of this type would be testing the means of the two groups based off statistical models and valid conclusions. Along with completing the testing of the means of the groups, we must also calculate the variance according to the distribution of the differences in means. If the standard deviation is known we can calculate the z-score by using the difference of the variance and the mean. In calculating the correlation between the two variables we see that it is crucial to know the characteristics of the coefficient. According to Lind, 2011 pages 386-389 we can calculate the coefficient of correlation. The coefficient of correlation can help dete rmine the cause as well as effect amongst the two variables. Calculating these numbers is  crucial as the results give information which help determine the level of significance of the given hypothesis. References Lind, D. A., Marchal, W. G., Wathen, S. A. (2011). Basic Statistics for Business and Economics (7th ed.). New York, NY: McGraw-Hill/Irwin. McClave, J. T., Benson, P. G., Sincich, T. (2011). Statistics for Business and Economics (11th ed.). Boston, MA: Pearson Education, Inc.

Alfred Hitchcocks Rear Window Essay examples -- Film Movies

Alfred Hitchcock's Rear Window In Rear Window, Alfred Hitchcock took a plot-driven short story and transformed it into a character-driven movie. Although differences must exist between text and film, because of the limitations and advantages of the different media, Hitchcock has done more than translate a word-based story into a visual movie. Aside from adding enough details to fill a two-hour movie, Hitchcock has done much to change the perspective of the story, as well as the main character. The novel’s Hal Jeffries, a seemingly hard-boiled and not overly intellectual man contrasts sharply with the photojournalist J.B. Jeffries of the movie. The addition of supporting characters, such as Lisa, diminishes somewhat the loneliness of the short story character. The character in the short story has more in common with Humphrey Bogart’s Sam Spade than with Jimmy Stewart’s Jeff. That Hitchcock took a story written in a style similar to Dashiell Hammett or Raymond Chandler, and cho se not to make a film noir detective story speaks much to Hitchcock’s purpose here. Rather than creating a conventional detective story, Hitchcock creates an everyman, whose injury prevents him from action. The impotence the character feels heightens the tension of the film, as well by forcing the viewers to identify with his frustration. The movie disguises the many of the darker moments with humor, a device commonly used to lessen the shock of less acceptable aspects of a story. While the story was merely the narrative of one man, the film portrays different concepts of, and stages of love, in the images of the people across the way. The story is a guiltily related narrative of one man’s voyeurism, repeatedly rationalized by him. B... ...that we, not Jeff, have been spying on the neighbors across the way. While both the story and the film contain aspects of voyeurism, as well as a physically limited character, Hitchcock’s film does more than simply add enough filler to complete a movie. He adds facets to the character not included in the story. He provides the character with a career and social life and motivation. Additionally, Hitchcock uses the visual aspects of the film to convey more about the characters. By associating Thorwald with the color red, and using light and shadow to highlight Jeff’s ambivalence about Lisa, we get hints about how we are supposed to feel about the various characters. Hitchcock has taken an adequate short story and transformed it into a fascinating and funny character study that seems to comment on the isolation of life in a modern urban environment.

How does disability affect child development? Essay

The situation that I chose to use on this topic is based from my own personal experience, I have a 7 year old son who was born with profound hearing loss and was also recently diagnosed with severe Autism. When he was young prior to the diagnosis of his condition I didn’t see anything wrong with him, being a young Mom to my first born I had little knowledge about child’s development, he looked normal to me because he was always smiling and giggling, he was eating right and rarely gets sick so I was at ease and never really thought that something was wrong. But everything changed when he turned 1 year old. I noticed how delayed he was compared to other children his age, he wasn’t walking and couldn’t sit by himself, he wasn’t responding to his name and wasn’t engaged to activities or toys. His development was so delayed that he didn’t start walking until he was 2 years old, he only learned to sit straight by himself when he turned a yea r and a half but he still needed guidance otherwise he’d lose balance and would fall. Living in a country where it was impossible to get access to medical needs needed for my son’s condition, we were in a country where you need to have money to get your child assessed and diagnosed and we weren’t that rich to afford it. We were lucky when we finally got our visa to come here in Canada as a Permanent Resident when my son just turned 2, for the first time we were able to get him assessed and diagnosed, that was when we found out that he was born with profound hearing loss on both ears and that explained his poor balance and delayed development. A year after the diagnosis my son was able to undergo a surgery, he had his cochlear implants to get access to sounds. We were told it will take years for him to learn to speak but it didn’t stop from there. Two years after his surgery my son was diagnosed with severe autism, he was five. I saw the sudden change in his behavior as he was growing and everything became more challenging, he stopped wearing his c ochlear implants for reason we don’t know till these days. My son is still non-verbal, but he’s getting interventions from specialized services, he goes to an inclusive school and he’s getting a lot of support and help from the school. He’s shown progress ever since this agency from specialized services started working with him, school and support from specialized services has helped him a lot and we are lucky to be here in Canada were supports for children is always there. As I faced these challenges with my son all these years I’ve learned a lot of things, I’ve learned that there are different reasons out there resulting to why a child develops a learning or behaviour problems, my son’s journey for instance is an example of a situation where he got his learning and behaviour problems from his disability, his deafness and Autism affected his development in so many ways like his; social development, emotional, communication and language. He was born with a disability and special needs but with the help of intervention and support from school and the services provided by the Government he’s able to learn things to improve his learning and behavior problems. No medical support and assessment could also be a reason resulting to a child’s learning and behavior problem, my son and I were lucky to be given the opportunity to come live in Canada where medical support and intervention for children with special needs are priori tized. Children from a country with no medical help and support are likely to develop learning problems because of the lack of intervention to help support them in areas they are in need of help. My son was in that situation for a short time, that situation where we can’t do anything because money is stopping us from getting medical support. Despite my son’s disability we’re just lucky to be receiving all the supports there is. There are a lot of explanations why a disability can affect a child’s development, it depends on what specific type of disability a child has and which area of a child’s development this disability affect. A child may have ADHD, Autism, Dyslexia, Dyspraxia, Asperger’s syndrome and Down syndrome, all these types of disabilities affect a child’s development that causes a problem with their learning ability. Autism affects a child’s emotional and social development, Autistic children appear to lack a â€Å"theory of mind’. (Baron-Cohen, nd.). Children with Autism prefer to be alone and they may have difficulty regulating their behavior which results in crying and even sometimes self-injurious. Reinforcements and daily modeling and teaching are very important to support a child with Autism build up their ability and knowledge. Same goes to children with hearing impairment that affects their language and communication skills, there are different disabilities and each result to learning and behavior problem, most disabilities are stopping a child’s normal development and sometimes causing a child distress and frustration also to the family’s part. A child with disability can be really challenging because some children with disability such as learning or physical disability may be exposed to discrimination at school by other students and that they will be treated differently than the rest of the students, they may get bullied and teased by other classmates because of their condition which can affect their self-confidence and in turn affect their learning ability and development.

King Lear Act 3 Questions Essay - 2241 Words

King Lear Act III Study Questions Scene I 1. Kent reveals to the Gentlemen that tension between Regan’s husband (Albany) and Goneril’s husband (Cornwall) could quite possible result in a civil war. However, aside from the war, the two may be united in plotting against the murder of King Lear. The King of France is preparing to make a move against these two divided house. He may have already sent spies to their households disguised as servants. 2. The mission that Kent asks the Gentlemen to complete is to go to Dover, the place where Cordelia lives, and inform her of how insultingly he was treated by Goneril and Regan. Also, in order to make sure that Cordelia knows the message sent is from him, he instructs to the Gentlemen to†¦show more content†¦11. Edgar’s speech is filled with alliterations when he is telling King Lear about how he is being chased by the devil. He states some interesting things such as â€Å"the fould fiend follows me† (3.4. 50.) 12. Upon seeing Edgar emerge from the hovel disguised as poor Tom, Lear immediately assumes that he is a madman and the reason he is in this state is because of his daughters. 13. Edgar responds to Lear’s assumptions by stating that he once used to be a rich courtier who used to drink wine all the time and have women with him. 14. Lear tears off his clothes in response to seeing Edgar (disguised as Tom) with an uncovered body. It’s the first time in his life that he actually sympathizes with someone other than himself. As Lear is driven further and further into insanity, he starts to think more about humanity and the way the world perceives him. Lear has actually taken into account some of the things that Edgar says because he realized that the world doesn’t just revolve around him and that material possessions are not everything. This kind of ironic because along with being physically naked, he is also figuratively naked because he has lost all support and must face the cruelties of the world by himself. 15. Gloucester’s appearance at the hovel illustrates the parallelShow MoreRelatedThe Expretation Of The Storm In Robert Frosts The Storm799 Words   |  4 Pagesdevastating storm which accurately describes the situation King Lear is experiencing in Act 2 Scene 4 of the play. As the accuracy of King Lear’s personality is described, it can be seen that King Lear could be considered the speaker of the poem and that reveals his true feelings and emotions after his crisis with his daughters. King Lear’s personality and situation are first described when the first two lines of the starts with a question asking, â€Å"Where had I heard this wind before change like thisRead MoreWilliam Shakespeare s King Lear1480 Words   |  6 PagesIntroduction William Shakespeare wrote the play of â€Å"King Lear† in 1986. 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