identify the independent variable, the dependant variable and the unit of analysis of the following statement Kentor, J. (2001). The long-term effects of globalization on income inequality, population growth, and economic development. Social Problems, 48, 4, 453-455.
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identify the independent variable, the dependant variable and the unit of analysis of the following statement
Kentor, J. (2001). The long-term effects of globalization on income inequality, population growth, and economic development. Social Problems, 48, 4, 453-455.
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- Using Lewis’ Two-Sector Model, explain why Kuznets’ hypothesis on income-per- capita and Gini can have inverted U-shape.Q A business researcher is investigating the relationship between certain personality characteristics of s business owners and the businesses' growth potential over the next five years. The researcher randon selects 15 small business owners, administers the "Speed and Impatience" (X) and "Job Involvement subscales of the Jenkins Activity Survey, and then determines the "Growth Potential (Z) for the businesses. The resulting data are as follows. Speed and Impatience Job Involvement Growth Potential Y Z 4 3 5 7 4 6 9 10 8 9 8 10 7 7 8 3 3 7 4 4 3 2 2 3 5 7 4 4 4 1 1 2 6 Without using SPSS, compute the following descriptive items. 1) The mean of the variable Speed and Impatience 2) The median of the variable growth potential 3) The quartiles Q1, Q2, Q3 and the IQR of the variable Speed and ImpatienceEvaluate the need for confidentiality in the contexts of a variety of research topics
- A large supermarket chain has invested heavily in data, technology, and analytics. Feeding predictive models with data from an infrared sensor system to anticipate when shoppers will reach the checkout counters, they are able to alert workers to open more checkout lines as needed. This has allowed them to lower their avera checkout time from four minutes to less than 30 seconds. Consider the data in the following table containing 32 observations. Suppose each observation gives the arrival time (measured in minutes before p.m.) and the shopping time (measured in minutes). O Arrival Time (minutes before 6:00 p.m.) Shopping Time (Minutes) 58 21 59 83 54 96 39 13 0 133 55 0 92 12 4 28 Shopping Time (minutes) 23 18 25 28 40 45 33 25 12 53 21 13 37 15 12 17 20 40 60 80 100 120 Arrival Time (Minutes Before 6:00 p.m.) Arrival Time (minutes before 6:00 p.m.) 140 38 AO 15 78 32 23 18 24 38 57 113 30 109 (a) Develop scatter diagram for arrival time as the independent variable. 47 104 72 112…58. Which methods are appropriate for categorical data? f. K-means clustering b. Logistic regression g. Linear regression h. Naïve Bayes i. Map/Reduce a. T-test c. Association rules d. Decision Trees e. Hive j. Pig
- 2. Table below records the quarterly refrigerator sales for the period 2012-2014. Number of 1 2 3 4 purchases 2012 46 41 60 63 2013 56 52 66 72 2014 58 56 75 76 a) Find the trend equation using the least squares method. b) Forecast the sales for the 1" quarter of 2015.An economist was interested in the relation between the disposable income of a family and the amount of money used for food per month. He did a preliminary study on eight randomly selected lower income families. (Each family was of the same size; father, mother and two children). The economist’s data are given in the table below. Food cost (Y) (in hundreds of rand) 55 60 42 40 37 26 39 43 Family disposable income(X) (in hundreds of rand) 30 36 27 20 16 24 19 25 Find the regression linear equation. What is the predicted food cost if the family disposable income is R1800? Find the correlation coefficient & Interpret r. Find the Coefficient of Determination & Interpret the R2.Do single-parent families tend to be more impoverished than families with two parents? In order to test if there is a relationship between family structure and family income level, family researcher studied a sample of 35 one-parent and 65 two-parent families in a particular city to determine whether their total family income fell below the poverty level. _________________________Family Structure____________________________ Total family Income One Parent Two Parents TOTAL Below poverty level 24 20 44 Not Below Poverty Level 11 45 56 Total 35 65 100 What are the independent and dependent variables.? What is the null hypothesis? What test should we use?…
- Training Dept. of Nimrod Inc wants to develop a regression-based compensation model (compensation in $ per year, Comp) for its mid-level managers to encourage performance, loyalty, and continuing education based on three variables. ▪ Business unit-profitability (Profit per year in $). ▪ Working experiences in Nimrod Inc (Years). ▪ Whether or not a manager has a graduate degree (Grads). If a manager has a graduate degree equals 1, 0 otherwise. Table Attached Question: Use the (full) model to determine the compensation for a manager who has been working for twelve years in a company, no graduate degree, and Nimrod Inc profit of $8.000.000 last year.What are the key concerns of the local government? What is the quantitative method applied here, and what are the variable/s used in the model? Looking at the unique aspects of the situation, what other forecasting method will you use here? Review the quantitative methods 1-5. Review the advantages and disadvantages of these quantitative methods.Training Dept. of Nimrod Inc wants to develop a regression-based compensation model (compensation in $ per year, Comp) for its mid-level managers to encourage performance, loyalty, and continuing education based on three variables. ▪ Business unit-profitability (Profit per year in $). ▪ Working experiences in Nimrod Inc (Years). ▪ Whether or not a manager has a graduate degree (Grads). If a manager has a graduate degree equals 1, 0 otherwise. Table Attached Question: Which explanatory variables and interaction terms are significant and not significant at alpha = 5%? Explain your answer briefly.
