Based on the materials we covered until now can you tell me in 150 words How has Business changed with so much data available?
In: Economics
3.a) Define the terms absolute advantage and comparative advantage.
b) Provide a real-world example from your personal or workplace experiences that demonstrate the concepts of absolute advantage and comparative advantage.
Hint: How household chores are divided-up among the members of your household is often a good example of absolute advantage and comparative
In: Economics
You invest $100 in a risky asset with an expected rate of return of 15% and a standard deviation of 15% and a T-bill with a rate of return of 5% (and a standard deviation of 0).
6. What percentages of your money must be invested in the risky asset and the risk-free asset, respectively, to form a portfolio with an expected return of 13%?
A) 20% and 80% B) 25% and 75% C) 80% and 20% D) 75% and 25%
7. What percentages of your money must be invested in the risk-free asset and the risky asset, respectively, to form a portfolio with a standard deviation of 8%?
A) 67% and 33% B) 53% and 47% C) 27% and 73% D) 47% and 53%
8. A portfolio that has an expected return of 23% is formed by
A) borrowing $40 at the risk-free rate and investing the total amount ($140) in the risky asset. B) borrowing $80 at the risk-free rate and investing the total amount ($180) in the risky asset. C) borrowing $60 at the risk-free rate and investing the total amount ($160) in the risky asset. D) borrowing $85 at the risk-free rate and investing the total amount ($185) in the risky asset.
9. The slope of the CAL formed with the risky asset and the risk-free asset is equal to
A) 0.5667. B) 0.6667. C) 0.7667 D) 0.4667.
In: Finance
Which of the following is ALWAYS true.
a) An object experiencing a constant negative acceleration has a decreasing momentum.
b) If an object has a constant acceleration, its kinetic energy is changing at a constant rate.
c) If an object has a zero net force acting on it, its kinetic energy is constant.
d) If an object's kinetic energy is constant, there is no net force acting on it.
e) If an object's kinetic energy is increasing there is a positive net force on it.
In: Physics
In: Operations Management
we talked earlier about measuring demand curves. how might we proceed if we want to measure congestion Externalities associated with various outdoor recreation activities?
In: Economics
Q2. If C=700+0.8Yd, I= 400, Tax=10%, & G= 200, then:
(A) Derive equation for AD
(B) Determine equilibrium value of output.
(C) Calculate value of multiplier
(D) Repeat first 3 parts if Govt. spending is increased to
300
(E) Show changes through graph.
In: Economics
Montoure Company uses a perpetual inventory system. It entered
into the following calendar-year purchases and sales
transactions
| Date | Activities | Units Acquired at Cost | Units Sold at Retail | |||||||||
| Jan. | 1 | Beginning inventory | 600 | units | @ $60 per unit | |||||||
| Feb. | 10 | Purchase | 480 | units | @ $57 per unit | |||||||
| Mar. | 13 | Purchase | 120 | units | @ $42 per unit | |||||||
| Mar. | 15 | Sales | 785 | units | @ $80 per unit | |||||||
| Aug. | 21 | Purchase | 180 | units | @ $65 per unit | |||||||
| Sept. | 5 | Purchase | 470 | units | @ $63 per unit | |||||||
| Sept. | 10 | Sales | 650 | units | @ $80 per unit | |||||||
| Totals | 1,850 | units | 1,435 | units | ||||||||
Compute the cost assigned to ending inventory using (a) FIFO, (b) LIFO, (c) weighted average, and (d) specific identification. For specific identification, units sold consist of 600 units from beginning inventory, 380 from the February 10 purchase, 120 from the March 13 purchase, 130 from the August 21 purchase, and 205 from the September 5 purchase. (Round your average cost per unit to 2 decimal places.)
Compute gross profit earned by the company for each of the four costing methods
In: Accounting
The Watergate crisis in the early 1970s led to the first resignation of a sitting president in American history. What did Richard Nixon do in the Watergate crisis to lead to his resignation?
In: Economics
explain two motivation theories that you think are most useful for a manager who is planning an employee award scheme ,both to decide what to include in the scheme and what not to include.
In: Operations Management
The following data represents a random sample of birth weignts (in kgs) of male babies born to mothers on a special vitamin supplement.
3.73
3.02
4.37
4.09
3.73
2.47
4.33
4.13
3.39
4.47
3.68
3.22
4.68
3.43
(a) Do the data follow a normal distribution? ? Yes
No
Report the P-value of the normality test:
(b) Do the data support the claim that the mean birth weight of
male babies that have been subjected to the vitamin supplement is
at least 3.39 kgs? Use the p-value approach, and regulate the
probability of committing Type I error to 5%5% (α=0.05α=0.05).
The p-value is:
Use three decimals.
Does this support the claim ? Yes No
In: Math
Item 1
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
Student Version |
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A teacher is one who guides or leads. To guide does not necessarily mean to instruct directly. We often think of teaching as direct instruction (presenting information, asking questions, giving feedback, demonstrating some procedure, evaluating student progress, and so on). But a teacher can guide without instructing directly. A good example is the Montessori system of education. In a Montessori school, most of what a child learns is through interacting with a variety of curriculum materials in a particular context. A Montessori teacher does much less direct instruction than do teachers in traditional schools. References: |
Teachers should be guides or leaders. In the role of a guide, a teacher does less presenting of information, demonstrating and providing feedback. For example, in a Montessori school, most student learning occurs through interaction with a variety of class materials, rather than interaction with a teacher. |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
Hints
Item 2
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
Student Version |
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To summarize, the elaboration model of instruction starts by presenting knowledge at a very general or simplified level in the form of a special kind of overview. Then it proceeds toadd detail or complexity in "layers" across the entire breadth of the content of the course (or curriculum), one layer at a time, until the desired level of detail or complexity is reached. References: |
They soon switched to a model based on the elaboration theory (Reigeluth, 1999). Using this approach, the game would begin with a level that offered the simplest version of the whole task (the epitome); subsequent levels would become increasingly more complex--an approach common to videogames--with opportunities for review and synthesis. References: |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
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Item 3
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
Student Version |
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In a complex task such as creating a website for learning, instructors may want to support the generation of multiple solutions in learners' peer feedback. Anonymity may create a social context where learners feel freer to express varied ideas, and make the task of giving feedback less inhibited. However, teachers need to know just how anonymity impacts the learning dynamic in order to make informed choices about when anonymous configurations are appropriate in peer feedback. References: |
Increased availability of technology in my classroom makes it easier for peer feedback activities to be conducted anonymously which "may create a social context where learners feel freer to express varied ideas, and make the task of giving feedback less inhibited" (Howard, Barrett, & Frick, 2010, p. 90). However, I worry that my students may be overly harsh if they don't have to stand by their comments. References: |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
Hints
Item 4
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
Student Version |
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While solitary negative reactions or unjustified suggestions for change have the potential to dissipate discourse rather than build it, the pattern analysis shows that the anonymous condition seemed to provide a safe explorative space for learners to try out more reasons for their multiple solutions. Teachers will rarely give anonymous feedback, but the experience of giving anonymous feedback may open a social space where learners can try out the reasons for their suggestions. References: |
In their study of anonymity in an online peer feedback activity, the authors found that, under conditions of anonymity, learners seemed more inclined to provide reasons to back up their suggestions (Howard, Barrett, & Frick, 2010). Getting both suggestions and the reasons for the suggestions would be welcome in feedback I receive from peers or my instructors. Seeing the reasons would help me know that the suggestions have been thought through (even if I don't always agree with them). References: |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
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Item 5
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
Student Version |
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The concept of systems is really quite simple. The basic idea is that a system has parts that fit together to make a whole; but where it gets complicated - and interesting - is how those parts are connected or related to each other. There are many kinds of systems: government systems, health systems, military systems, business systems, and educational systems, to name a few. References: |
Frick (1991) claims that systems, including both business systems, and educational systems, are actually very simple. The main idea is that systems "have parts that fit together to make a whole" (The nature of systems in education section, para. 1). What is further interesting to Frick is how those parts are connected together. References: |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
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Item 6
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
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Instructional designers typically employ models
to guide their day-to-day work. Due to the increased practice of
the systematic design of instruction in a growing number of
settings, available models become more and more
proliferated, focusing on particular types and contexts of
learning, particular groups of learners or designers, or particular
instructional units (either whole curricula or individual
modules or lessons.) References: |
"The main goal of any instructional design process is to construct a learning environment in order to provide learners with the conditions that support desired learning processes" (van Merriënboer, 1997, p. 2). Process models proliferate because more and more designers generate models that focus on specific contexts, learners, or even units of instruction, according to van Merriënboer.
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Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
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Item 7
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
Student Version |
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Analysis of patterns in time (APT) is a method for gathering information about observable phenomena such that probabilities of temporal patterns of events can be estimated empirically. If appropriate sampling strategies are employed, temporal patterns can be predicted from APT results. Finally, APT is compared to the linear models approach and event history analysis. The major difference is that in APT there is no mathematical model assumed to characterize relations among variables. In APT the model is the temporal pattern being investigated. References: |
APT is an empirical approach to observing and coding phenomena by using mutually exclusive and exhaustive categories within multiple classifications (Frick, 1990). Once these data have been collected, researchers specify APT queries to calculate the probability of joint and/or sequential patterns of interest. In effect, researchers create measures of temporal patterns by counting the occurrences of these coded patterns. According to Frick, Analysis of Patterns in Time is different from the linear models approach of measuring variables separately and using statistics to analyze their relations. References: |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
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Item 8
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
Student Version |
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Because computer systems exhibit performative intelligence, we can teach them to do tasks. It is this very capability that makes it possible to use computers as an interactive medium for instruction and learning. It is interaction which sets computers systems apart from other media such as books, television, and film. However, present-day computers literally do not understand the culturally bound meanings of the messages which they manipulate during these interactions because such computers lack qualitative intelligence. References: |
According to Frick (1997), computer systems demonstrate performative intelligence, when compared to other media such as books, television, and film. Computers can be programmed to do things. This feature of computer systems makes them an alternative medium for instruction and learning. However, he claims that computer systems lack the ability to understand the meaning of messages they send and receive during interaction with students and teachers. References: |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
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Item 9
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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Original Source Material |
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Educational researchers, policymakers, and practitioners agree that educational research is often divorced from the problems and issues of everyday practice--a split that creates a need for new research approaches that speak directly to problems of practice (National Research Council [NRC], 2002) and that lead to the development of "usable knowledge" (Lagemann, 2002). Design-based research (Brown, 1992; Collins, 1992) is an emerging paradigm for the study of learning in context through the systematic design and study of instructional strategies and tools. We argue that design-based research can help create and extend knowledge about developing, enacting, and sustaining innovative learning environments. References: |
A decade later, researchers interested in studying learning in naturalistic settings (inspired by Brown's approach) began a concerted effort to define the standards and argue the legitimacy of this type of research through design. For example, the Design-Based Research Collective defined design-based research (DBR) as "an emerging paradigm for the study of learning in context, through the systematic design and study of instructional strategies and tools" (DBRC, 2003, p. 5). References: |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
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Item 10
In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button.
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First, the potential of digital games is discussed using the tutor/tool/tutee framework proposed by Taylor (1980). Second, the potential of digital games to enhance learning by connecting game worlds and real worlds is stated. Third, the possibility of digital games to facilitate collaborative problem-solving is addressed. Fourth, the capability of digital games to provide an affective environment for science learning is suggested. Last, the potential of using digital games to promote science learning for younger students is indicated. References: |
There are five advantages of using games in science learning stated in the literature. Games can be used as tools; make connections between virtual worlds and the real world; promote collaborative problem solving; provide affective and safe environments; and encourage younger students for science learning. |
Which of the following is true for the Student Version above?
Word-for-Word plagiarism
Paraphrasing plagiarism
This is not plagiarism
In: Psychology
A bullet (m = 10 g) flies horizontally with an initial speed of v = 500 m/s and then embeds itself in a block of wood (m = 400 g) that is at rest on a flat surface. The surface has a coefficient of kinetic friction μk = 0.4. After the impact, how far does the block of wood slide?
(a) 40 m (b) 800 m (c) 8 m (d) 80 m (e) 20 m
In: Physics
In the worst-case scenario, you've got an elevator with a mass 2420 kg moving a speed 4.29 m/s when it reaches the bottom of the shaft. Your first idea is to put a spring, with spring constant 1.068×104 N/m, at the bottom of the shaft.
a)Assuming the spring obeys Hooke's Law perfectly, how far will it compress to stop the elevator?
b)When the elevator comes to a stop with the spring compressed, what is the net force on the elevator?
c)It's a bit unreasonable to put a spring large enough to compresses this far under every elevator. So you decide to add a clamping mechanism to the walls around the spring, which will provide a friction force of magnitude 1.74×104 N
Now how far does the spring get compressed?
Express your answer with appropriate units.
In: Physics
. 6. Present an insurance coverage plan for your small business. What coverage is needed, and how much will each plan cost? Respond in question-answer format. Reference shall be provided when outside resources are used in your work.
In: Operations Management