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examine two to three of challenges involved with using graphs, functions and trees when modelling relationships. Provide example with your response
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An empirical study by Huang, Siegfried and Zardoshty3 estimated a demand function for coffee in the United States between ...
Economics The Demand for Coffee Case Study
An empirical study by Huang, Siegfried and Zardoshty3 estimated a demand function for coffee in the United States between 1961 and 1977, using quarterly time-series data. The results were:ln Qt 1⁄4 1:2789 0:1647 ln Pt þ 0:5115 ln Yt ð2:14Þ ð1:23Þþ 0:1483 ln Pt0 0:0089 T 0:0961 D1T= thetrendfactor,withT=1for1961-ItoT=66for 1977-IID1 = 1 for the first quarterD2 = 1 for the second quarterD3 = 1 for the third quarter Questions1 Interpret the PED for coffee; does price significantly affect consumption?2 Interpret the YED for coffee; does income significantly affect consumption?3 Interpret the CED between tea and coffee; does the price of tea significantly affect the consumption of coffee?4 Why do you think that advertising expenditure is omitted from the equation?5 Interpret the trend factor.6 Interpret the seasonal pattern in coffeeconsumption in the USA.7 How well does the model fit the data?ð0:55Þ ð3:326Þ 0:1570 D2 0:0097 D3ð6:03Þ ð0:37Þ R2 1⁄4 0:80whereð3:74ÞQ = pounds of coffee consumed per headP = the relative price of coffee per pound at 1967 prices Y = per capita personal disposable income (in $,000 at 1967 prices)P 0= the relative price of tea per quarter pound at 1967 prices
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Find a news article on the Internet that discusses correlational research. For instance, look at the following example that I found after a basic Google News search:
Vigorous Exercise Linked With Better Grades
Note that the title uses the word "linked" and not "caused" because correlational research can only investigate patterns and tendencies, not causal relationships. In my article, research is discussed in which students who exercised vigorously tended to get better grades. Importantly, it is not necessarily the case that exercise is causing higher grades for these students. Rather, it's possible that a third variable, such as personality, is causing both. For instance, students who are more conscientious may be more likely to exercise vigorously, and conscientious students may also be more likely to study hard and thus get better grades.
For this discussion assignment, post a link to your article and provide a very brief summary of the correlational findings. Be sure to indicate what two variables are correlated, whether it is a positive or a negative correlation, and whether you think any third variable(s) may be linked to the other two. Finally, discuss any other thoughts you have about the study. For instance, do you feel the author does a good job of avoiding claims about causality, given the correlational nature of the research? Are you surprised by the findings of the research? Do you feel the research is reliable and valid, as discussed by the author? You don't have to answer each of these questions.
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Most Popular Content
Economics The Demand for Coffee Case Study
An empirical study by Huang, Siegfried and Zardoshty3 estimated a demand function for coffee in the United States between ...
Economics The Demand for Coffee Case Study
An empirical study by Huang, Siegfried and Zardoshty3 estimated a demand function for coffee in the United States between 1961 and 1977, using quarterly time-series data. The results were:ln Qt 1⁄4 1:2789 0:1647 ln Pt þ 0:5115 ln Yt ð2:14Þ ð1:23Þþ 0:1483 ln Pt0 0:0089 T 0:0961 D1T= thetrendfactor,withT=1for1961-ItoT=66for 1977-IID1 = 1 for the first quarterD2 = 1 for the second quarterD3 = 1 for the third quarter Questions1 Interpret the PED for coffee; does price significantly affect consumption?2 Interpret the YED for coffee; does income significantly affect consumption?3 Interpret the CED between tea and coffee; does the price of tea significantly affect the consumption of coffee?4 Why do you think that advertising expenditure is omitted from the equation?5 Interpret the trend factor.6 Interpret the seasonal pattern in coffeeconsumption in the USA.7 How well does the model fit the data?ð0:55Þ ð3:326Þ 0:1570 D2 0:0097 D3ð6:03Þ ð0:37Þ R2 1⁄4 0:80whereð3:74ÞQ = pounds of coffee consumed per headP = the relative price of coffee per pound at 1967 prices Y = per capita personal disposable income (in $,000 at 1967 prices)P 0= the relative price of tea per quarter pound at 1967 prices
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Statistics Exercise 14 19
From figure 1 and the study narrative, the APLS UK formula has overestimated the weight 10-25.4%. This is evident from the ...
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From figure 1 and the study narrative, the APLS UK formula has overestimated the weight 10-25.4%. This is evident from the fact that they are using a ...
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4.16 The population distribution in the United States based on race/ethnicity and blood type as reported by the American R ...
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Just need this completed, no textbooks or anything needed, just knowledge of the subject. Work needs to be shown. Either can print it out and fill it out and send back or can be done on notebook paper or really anything. The assignment is on the photos and shouldn't take very long.
Los Angeles Pierce College Correlational Article Discussion
Find a news article on the Internet that discusses correlational research. For instance, look at the following example tha ...
Los Angeles Pierce College Correlational Article Discussion
Find a news article on the Internet that discusses correlational research. For instance, look at the following example that I found after a basic Google News search:
Vigorous Exercise Linked With Better Grades
Note that the title uses the word "linked" and not "caused" because correlational research can only investigate patterns and tendencies, not causal relationships. In my article, research is discussed in which students who exercised vigorously tended to get better grades. Importantly, it is not necessarily the case that exercise is causing higher grades for these students. Rather, it's possible that a third variable, such as personality, is causing both. For instance, students who are more conscientious may be more likely to exercise vigorously, and conscientious students may also be more likely to study hard and thus get better grades.
For this discussion assignment, post a link to your article and provide a very brief summary of the correlational findings. Be sure to indicate what two variables are correlated, whether it is a positive or a negative correlation, and whether you think any third variable(s) may be linked to the other two. Finally, discuss any other thoughts you have about the study. For instance, do you feel the author does a good job of avoiding claims about causality, given the correlational nature of the research? Are you surprised by the findings of the research? Do you feel the research is reliable and valid, as discussed by the author? You don't have to answer each of these questions.
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