Cameras come with many options, and it appears that the more that you want, the higher the
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c. Does advertising expenditure x2 contribute significant information for the prediction of y, given that x1 is already in the model? Use a = .01.
d. Calculate the coefficient of determination, R2. What percentage of the overall variation is explained by the model?
Transcribed Image Text:
Camera Nikon Coolpix S8000 Canon PowerShot SD1400 IS Elph Sony Cyber-shot DSC-HX5V Sony Cyber-shot DSC-TX7 Panasonic Lumix DMC-FPI Canon PowerShot A3100 IS Sony Cyber-shot DSC-W380 Nikon Coolpix S70 Pentax Optio I-10 Olympus Stylus 5010 Olympus Stylus 7040 Sony Cyber-shot DSC-W350 Canon PowerShot A490 Canon PowerShot A945 Casio Exilim EX-G1 Samsung TL210 Olympus Stylus Tough-3000 Sony Cyber-shot DSC-W310 Olympus FE-47 Sony Cyber-shot DSC-S2100 Cost y X1 x2 x3 x4 X5 300 65 14 6 10.0 30 210 250 350 60 10 7 10.0 25 310 400 59 10 5 4.0 25 230 150 59 12 6 4.0 35 300 180 58 12 6 4.0 35 240 140 57 14 4 5.0 24 220 300 57 12 6 5.0 28 200 300 56 12 6 5.0 28 250 200 55 14 5 5.0 26 120 250 55 14 5 7.0 28 120 200 55 14 4 4.0 26 220 110 55 10 7 3.0 37 150 130 54 10 7 3.0 37 150 250 54 12 5 3.0 38 300 230 54 12 5 5.0 27 200 230 48 12 6 3.6 28 160 150 4712 5 4.0 28 220 120 47 14 7 5.0 36 120 120 46 12 7 3.0 35 170 61 14 5 4.0 28 230
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a The appropriate model is y 0 1 x 1 2 x 2 3 x 3 4 x 4 5 x 5 b R...View the full answer
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Sean McCreery
Two convictions guide my teaching. The first is that the classroom must be a space of interest, excitement, and discovery for students and teacher alike. Echoing the pedagogical creed of John Dewey, I believe each individual student learns best when every member of the class, instructor included, assumes the responsibility of learning, teaching, and generating ideas as a group. The second conviction that guides my teaching is that literary works are not merely objects to be consumed but occasions to be realized. I resist “the good-humoured feeling,” as Henry James wrote sardonically, “that a novel is a novel, as a pudding is a pudding, and that our only business with it could be to swallow it.” I believe that literature is the precipitate for a personal adventure, whose final outcome cannot be predicted in advance. All this is really to say that, no matter the activity, my goal is to offer students a point of access to the deeply rewarding challenges of close reading, rhetorical argumentative strength, and imaginative speculation that will empower college and high school students in all aspects of life.
Achieving this goal is not easy for any teacher, but there are particular obstacles confronting those of us who teach in the Humanities today. While every student could be by and large, bright, motivated, and enthusiastic learners, they face so many demands (friends, extracurricular activities, leadership positions, college applications, internships, jobs, general inertia) that it can be difficult for them to focus on academic work. Within this climate, I find that students welcome the round table feel of a seminar discussion as an intellectual oasis, where they can attend, closely and collectively, to an experience that is difficult to replicate outside of an English classroom. Students need to know, in a way that is applicable to them, that cultivating this oasis, making it as alive as possible, is our shared communal responsibility; in my mind the success of a class, in other words, depends on informed, sustained, and diligent participation from everyone. Be it a class of 25 or 2 this still stands. To encourage such participation to grow, I employ many different tactics. I often use technology, music, videos, websites, and other media as a springboard to discussion. Specific examples include creating wikipedia pages, using reddit to practice rhetorical skills, utilizing interactive websites such as Versal, and employing hands on activities such as the Adbusters media literacy kit.
In a more practical sense I have taken direction from John Dewey, and organize my classes as a group activity in which we are all fully engaged and are all personally responsible. For instance, I have designated pairs of students as “conveners” for each class, whose task is to facilitate our thinking and push us toward the fullest understanding of the text by their asking sophisticated questions at the outset and resisting facile consensus. The conveners can be advised to work from the premise that exploring questions is more valuable than arriving at answers. Simply put, rather than my asking “what did you think about,” I create a demand that students ask “what is up with” questions. With those questions, open dialogue indeed happens. The ideal classroom, as I see it, strikes a balance between delivery of content and interactive, participatory exchange. There are many ways to achieve this balance; in my experience, the most effective approach is to explicate the examined text in a way that points out paradoxes, inconsistencies, and other oddities that demand further consideration. This can be done either during class itself or in writing assignments. Lecturing itself, meanwhile, necessitates the ability to excite students with a diverse array of intellectual commitments and creative aspirations. Simply put, I believe an informative class is a fun class, and that a fun class is informative.
I would say that while it is possible for any student to struggle, when they get the help they need, usually via one to one tutoring, they tend to work through obstacles. We all know how learning curves can vary. Thus, as a teacher, academic adviser, athletic coach, or mentor, I have tried to be sensitive to each individual student’s needs, and it should be noted that I do firmly believe in differentiated instruction.
In short, learning should be both useful and fun for both student and teacher.
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Related Book For
Introduction To Probability And Statistics
ISBN: 9781133103752
14th Edition
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
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