1. In statistics, the process of hypothesis testing involves data preparation, including explorative data analysis. Do you think explorative data analysis is important? Why, or why not? At least 200 W
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1. In statistics, the process of hypothesis testing involves data preparation, including explorative data analysis. Do you think explorative data analysis is important? Why, or why not?
At least 200 Words
2. In this unit, you learned about hypothesis testing. For this assignment, you will be composing an essay to demonstrate what you have learned about this topic. In your essay, you should do the following.
Discuss the five steps in hypothesis testing, citing examples where necessary.
Define null and research hypotheses.
Explain how to prepare data for hypothesis testing.
Describe exploratory data analysis as a prelude to hypothesis testing.
Distinguish between Type I and II errors. What are the implications of each?
Be sure to begin your essay with an introduction section that includes a thesis statement for the paper. Your essay must be at least two pages in length, and you must use at least three references. Any information from a resource must be cited and referenced in APA format, and your essay should be formatted in APA style.
Follow the directives to the letter please.
Sullivan, L. M. (2018). Essentials of biostatistics in public health (3rd ed.). Jones & Bartlett Learning. https://online.vitalsource.com/#/books/9781284142853
1. In statistics, the process of hypothesis testing involves data preparation, including explorative data analysis. Do you think explorative data analysis is important? Why, or why not? At least 200 W
W elcom e to our In tro d u ctio n s a n d Co n clu sio n s tutorial. This tutorial prov ides strategies for w riting introduction s and conclusions. If you hav e additional questions after v iew ing this tutorial, please reach out to the W riting Center. W e’re here to help! 1 This tutorial explains the purpose of an introduction and of a conclusion, giv es strategies for w riting introduction s and conclusions, and discusse s w hat to av oid in our introductions and conclusion s. 2 The purpose of an introduction is to engage readers w ith the topic by grabbing their attention and focusing their attention on your topic (Aaron, 2016). You w ant to prepare readers for y our paper by introducing the topic, prov iding any backgroun d inform ati on needed to understa nd the paper, and establishing the m ain argum ent. (Arlov, 2010). The introduction is your first chance to get readers interested in your w riting and m ake them w ant to keep reading. 3 An introduction should engage the readers w ith the topic. Including a hook w ill grab their attention and get them inv ested in the topic. How ev er, you should m ake sure that the hook is relevant to the topic y ou w ill discuss in the paper (B allenger, 2007). O ne option for a hook is a brief anecdote or narrativ e, but you should av oid lengthy person al stories or hypothetical situations that delay the introduction of the m ain argum ent and distract from the m ain point. Your hook should not take up the entire introductory paragra p h ( Arlov , 2010). You should also note that persona l experience s are not appropri ate in ev ery assign m ent. If the person al experienc e distracts readers from your ov erall point or if you hav e been asked to w rite based on research instead of person al experience s, you should use a different hook. Another option for a hook is a surprising statistic or fact that is related to your topic. (Aaron, 2016). A third option is a quotation. If you find a quotation that really captures the problem you w ant to explore, it can serv e as the hook. (B allenger, 2007). Q uotations from experts can serv e as a hook and be a jum ping -o ff point for y our ow n ideas. How ev er, any quotations used m ust be relevant to y our topic. (Reinking & v on der O sten , 2014). If y ou are w riting a paper on texting and driv ing, for exam pl e, y ou could include a surprisin g and intriguing statistic about the num ber of v ehicle deaths caused by texting. You could also use a specific new s story of a teenager ’s death due to texting 4 and driv ing. Either of these options w ill engage the readers w ith the topic. 4 O ur introduction s m ust include m ore than the hook to prepare readers for the upcom ing essay. B ackgroun d inform ati on giv es necessary details that people outside of y our course w ould need to understan d the paper ( A rlov , 2010). Exam ple s of backgroun d inform atio n include titles and authors of articles you hav e been asked to analyze, controv ersy surroun din g your topic, technical term s that need to be defined, and hypothetical situations or actual cases that you hav e been asked to evaluate. Include details that readers w ho are not in your class w ould need in order to understan d the paper ( A rlov , 2010). The introduction also prepares readers for the paper by stating your thesis. Your introduction should clearly state w hat your m ain argum ent is or w hat the m ain topic to be discusse d is ( A rlov , 2010). The introduction prepares the readers for w hat is to com e by focusing their line of sight on the topics to be discusse d. After reading your introduction, readers should hav e a good idea of w hat you are going to talk about in the paper. Rem em be r that som e assign m ent s hav e specific requirem ent s for the introduction. M ake sure to check the syllabus and understan d the assign m e nt requirem e nts before w riting the introduction. 5 B eginning s can be hard to w rite, and som etim e s, w e need a w arm -up paragra ph (Aaron, 2016). How ev er, w e need to m ake sure to rev ise our introduction s and cut out any generalizati o ns, announc e m ent s of w hat w e w ill do in the essay, or apologie s. W e should not try to m ake broad, sw eeping generalizatio n s like sin ce th e d a w n o f m a n . Apologie s also w eaken an introduction. (Aaron, 2016). Saying I d o n ’t kn o w m u ch a b o u t th is to p ic, b u t my u n d ersta n d in g is … or I m ig h t b e w ro n g , b u t I th in k … does not inspire confidence in your readers. You should not apologize for your opinion or for inexperie nc e. (Aaron, 2016). W e should also av oid introducing our topic by saying in this essay, I w ill… . (Aaron, 2016). Statem ents that announc e w hat the paper w ill do should appear in the abstract, not the introduction. 6 “Readers rem em be r beginning s and endings” (B allenger, 2007, p. 196). So, it is im portant to understan d both the introduction and the conclusion. The conclusion’s m ost basic purpose is to let the readers know that the paper is ending (A rlov, 2010). This is the last chance you hav e to get your point across to the readers. Conclusion s do this by rem inding the readers of your points and show ing them the im portance of w hat you hav e w ritten (Arlov, 2010). 7 O ne w ay to keep the readers thinking about your topic is to highlight your m ain points. The sum m a ry portion of the conclusion “draw s together and reinforces the m ain points of a paper ” (Reinking & v on der O sten, 2014, p. 101). W hile sum m ary is beneficial to the conclusion, you should av oid endings that sim ply re -state w hat y ou hav e already said. You need to rew ord the thesis and your m ain points. (Arlov, 2010) Av oid copying the thesis statem ent and topic sentences and pasting them into the conclusion. B allenger (2007 ) argues that a conclusion needs to add som ething to the paper. Therefore, you should not re -use the sam e w ording. 8 If a conclusion should add som ething to the paper, w e need to include m ore than a sum m a ry in the conclusion (B allenger, 2007). O ne w ay to leav e your audience thinking about y our argum ent is to m ake a recom m en d atio n or present a solution to the issue you hav e identified. You could also illustrate the im portance of your argum ent by show ing w hat it m eans for your readers or society as a w hole. Show your audience how the problem affects them and m ake a prediction about w hat m ay happen if things continue as they are (Arlov, 2010). You can also leav e readers thinking about w hat you hav e w ritten by challengin g them to act or to do som ething to fix the issue (Reinking & v on der O sten, 2014). For exam pl e, a paper targeting an audience of fire fighters and discussing safety equipm ent could end as follow s: Fire fighters should refuse to enter dangero u s settings w ithout the proper equipm ent. This statem ent challenges the audience to take their safety into their ow n hands. 9 Though conclusions should add som ethin g to the paper, they should not bring up new sources or new ev idence (Reinking & v on der O sten, 2014). The conclusion is suppose d to signify the end, and introducing new ev idence w ill m ake the paragra p h seem m ore like a body paragra p h than an ending. Endings that apologize for you not being an expert m ake your readers doubt w hat you hav e w ritten (Aaron, 2016). “Saying that you could hav e done a better job m akes a reader w onder w hy you didn’t ” (Reinking & v on der O sten, 2014, p. 100). You should also av oid trailing off into new topics that are not related to w hat you’v e been discussing or abruptly ending after the re -statem ent of the thesis. (B allenger, 2007). Cutting off your essay w ithout a conclusion or w ith a really short conclusion does not leav e readers thinking about your topic; it usually leav es them disappo inte d and w ondering if you hav e truly finished the essay. 10 If you hav e any questions about any of this inform atio n or if you need help w ith w riting skills or APA, w e in the W riting Center are here to help. If you hav e any questions, please feel free to call at 1 -800 -977 -8 4 4 9 ext. 6538 or em ail us at team succee d@ c ol u m bi a so ut he r n.e d u. In addition, if you w ould like to w ork w ith a w riting specialist, you can send your papers in before you subm it them to your professor for a grade. Sim ply fill out the W riting Center Request form located in your Student Portal, attach your paper, and w e w ill giv e instructions on skills that are needed. W e w ill em ail your paper back to you w ith specific resources to help you. Please be adv ised that w riting specialists require up to tw o business days to process requests. 11 As part of the Success Center, these other serv ices are available : the O ffice of Disability Serv ices, English Langu ag e Learner Serv ices, and the M ath Center. Feel free to call or em ail them for assistance. 12 These sources w ere used in this presentation. 13 Thank you! 14
1. In statistics, the process of hypothesis testing involves data preparation, including explorative data analysis. Do you think explorative data analysis is important? Why, or why not? At least 200 W
Welcome to our Introductions and Conclusions tutorial. This tutorial provides strategies for writing introductions and conclusions. If you have additional questions after viewing this tutorial, please reach out to the Writing Center. We’re here to help! 1 This tutorial explains the purpose of an introduction and of a conclusion, gives strategies for writing introductions and conclusions, and discusses what to avoid in our introductions and conclusions. 2 The purpose of an introduction is to engage readers with the topic by grabbing their attention and focusing their attention on your topic (Aaron, 2016). You want to prepare readers for your paper by introducing the topic, providing any background information needed to understand the paper, and establishing the main argument. ( Arlov , 2010). The introduction is your first chance to get readers interested in your writing and to make them want to keep reading. 3 An introduction should engage the readers with the topic. Including a hook will grab their attention and get them invested in the topic. However, you should make sure that the hook is relevant to the topic you will discuss in the paper (Ballenger, 2007). One option for a hook is a brief anecdote or narrative, but you should avoid lengthy personal stories or hypothetical situations that delay the introduction of the main argument and distract from the main point. Your hook should not take up the entire introductory paragraph ( Arlov , 2010). You should also note that personal experiences are not appropriate in every assignment. If the personal experience distracts readers from your overall point or if you have been asked to write based on research instead of personal experiences, you should use a different hook. Another option for a hook is a surprising statistic or fact that is related to your topic. (Aaron, 2016). A third option is a quotation. If you find a quotation that really captures the problem you want to explore, it can serve as the hook. (Ballenger, 2007). Quotations from experts can serve as a hook and be a jumping -off point for your own ideas. However, any quotations used must be relevant to your topic. ( Reinking & Osten , 2014). If you are writing a paper on texting and driving, for example, you could include a surprising and intriguing statistic about the number of vehicle deaths caused by texting. You could also use a specific news story of a teenager’s death due to texting and 4 driving. Either of these options will engage the readers with the topic . 4 Our introductions must include more than the hook to prepare readers for the upcoming essay. Background information gives necessary details that people outside of your course would need to understand the paper ( Arlov , 2010). Examples of background information include titles and authors of articles you have been asked to analyze, controversy surrounding your topic, technical terms that need to be defined, and hypothetical situations or actual cases that you have been asked to evaluate. Include details that readers who are not in your class would need in order to understand the paper ( Arlov , 2010). The introduction also prepares readers for the paper by stating your thesis. Your introduction should clearly state what your main argument is or what the main topic to be discussed is ( Arlov , 2010). The introduction prepares the readers for what is to come by focusing their line of sight on the topics to be discussed. After reading your introduction, readers should have a good idea of what you are going to talk about in the paper. Remember that some assignments have specific requirements for the introduction. Make sure to check the syllabus and understand the assignment requirements before writing the introduction. 5 Beginnings can be hard to write and sometimes we need a warm -up paragraph (Aaron, 2016). However, we need to make sure to revise our introductions and cut out any generalizations, announcements of what we will do in the essay, or apologies. We should not try to make broad, sweeping generalizations like since the dawn of man . Apologies also weaken an introduction. (Aaron, 2016). Saying I don’t know much about this topic, but my understanding is… or I might be wrong, but I think … does not inspire confidence in your readers. You should not apologize for your opinion or for inexperience. (Aaron, 2016). We also should avoid introducing our topic by saying in this essay, I will…. (Aaron, 2016). Statements that detail what the essay will do should appear in the abstract, not the introduction. 6 “Readers remember beginnings and endings” (Ballenger, 2007, p. 196). So, it is important to understand both the introduction and the conclusion. The conclusion’s most basic purpose is to let the readers know that the paper is ending ( Arlov , 2010). This is the last chance you have to get your point across to the readers. Conclusions do this by reminding the readers of your points and showing them the importance of what you have written ( Arlov , 2010). 7 One way to keep the readers thinking about your topic is to highlight your main points. The summary portion of the conclusion “draws together and reinforces the main points of a paper” ( Reinking & Osten , 2014, p. 101). While summary is beneficial to the conclusion, you should avoid endings that simply re -state what you have already said. You need to reword the thesis and your main points. ( Arlov , 2010) Avoid copying the thesis statement and topic sentences and pasting them into the conclusion. Ballenger (2007) argues that a conclusion needs to add something to the paper. Therefore, you should not re -use the same wording . 8 If a conclusion should add something to the paper (Ballenger, 2007), what are our choices to add to the summary? One way to leave your audience thinking about your argument is to make a recommendation or present a solution to the issue you have identified. You could also illustrate the importance of your argument by showing what it means for your readers or society as a whole. Show your audience how the problem affects them and make a prediction about what may happen if things continue as they are ( Arlov , 2010). You can also leave readers thinking about what you have written by challenging them to act or to do something to fix the issue ( Reinking & Osten ,2014). For example, a paper targeting an audience of fire fighters and discussing safety equipment could end as follows: Fire fighters should refuse to enter dangerous settings without the proper equipment . This statement challenges the audience to take their safety into their own hands. 9 Though conclusions should add something to the paper, they should not bring up new sources or new evidence ( Reinking & Osten , 2014). The conclusion is supposed to signify the end, and introducing new evidence will make the paragraph seem more like a body paragraph than an ending. Endings that apologize for you not being an expert make your readers doubt what you have written (Aaron, 2016). “Saying that you could have done a better job makes a reader wonder why you didn’t” ( Reinking & Osten , 2014, p. 100). You should also avoid trailing off into new topics that are not related to what you’ve been discussing or abruptly ending after the re -statement of the thesis. (Ballenger, 2007). Cutting off your essay without a conclusion or with a really short conclusion does not leave readers thinking about your topic; it usually leaves them disappointed and wondering if you have truly finished the essay. 10 If you have any questions about any of this information or if you need help with writing skills or APA, we in the Writing Center are here to help. If you have any questions, please feel free to call at 1 -800 -977 -8449 ext. 6538 or email us at [email protected]. In addition, if you would like to work with a writing specialist, you can send your papers in before you submit them to your professor for a grade. Simply fill out the Writing Center Request form located in your Student Portal , attach your paper, and we will give instructions on skills that are needed. We will email your paper back to you with specific resources to help you. Please be advised that writing specialists require up to two business days to process requests. 11 As part of the Success Center, these other services are available: the Office of Disability Services, English Language Learner Services, and the Math Center. Feel free to call or email them for assistance. 12 These sources were used in this presentation. 13 Thank you! 14
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