The value of the correlation coefficient is found to be insignificant at 5 per cent level. Secondly, the correlation between ROI and QR is 0.90 which is also found to be insignificant at 5 per cent level. It reveals that there is no correlation between the two variables. It is evident from these two ratios that the lower the company's margin of safety to the short term creditors, the greater is the profitability of the concern. Thirdly, the correlation coefficient between ROI and WCR is -0.133. It implies that there is negative correlation between profitability of the company and the ratio of working capital. At 5 percent level, the value of the correlation coefficient is found to be insignificant as mentioned in Table 2. This is in…
1. QUESTION: Class, what does the correlation coefficients of -1, +1, and 0 tells you about the relationship between the two variables? It depends on the method one uses, but the Pearson correlation coefficient is the most widely used. Values in the form of numbers show the direction and how strong the relationship is between two different variables. These can range from -1.00 up to +1.00. If it is positive it is a direct relationship. For example, if one increases the other will also…
Introduction I’m going to start this paper with introducing the history of Pascal’s Triangle, time ranging from 2nd century BC to 18th century AD. Among all the academic works by ancient mathematicians, I’m going to focus on Jiu Zhang Suan Shu [Nine Chapters on the Mathematical Art] composed by Chinese scholars around 2nd century BC-10th century AD. I will use the binomial expansions derived from Pascal’s triangle as an example and then illustrate the coefficients expansion in general. After…
Introduction: The NRC, Noise Reduction Coefficient, is the average of the levels of absorptiveness in a material at four different frequencies; 250, 500, 1000, and 2000 Hz. If a material has an NRC of 0, it will reflect sound. If it has an NRC of 1, it is perfectly absorptive. These numbers can be converted into a percentage, therefore ranging from 0% to 100% in absorptiveness. (Noise Reduction Coefficients (NRC) Ratings for Common Building Materials & Products, n.d.) In order to soundproof…
inventor of the Gini coefficient, which measures income inequality, died. How does it work, asks Chris Stokel-Walker. When Italian statistician - and former fascist - Corrado Gini died in Rome on 13 March 1965, he could not have known that 50 years on, the UN would still use his name in their annual rankings of nations. "The Gini coefficient provides an index to measure inequality," says Antonio Cabrales, a professor of economics at University College London. It is a way of comparing how…
The three objectives of this experiment were to determine the experimental and theoretical overall heat transfer coefficient, the effects of insulation, and the number of fouled tubes in the shell and tube heat exchanger. The flow rates of the hot water supply to the tubes and the cold water supply to the shell were varied, and temperatures for the hot inlet, hot outlet, cold inlet, and cold outlet streams were recorded. These temperatures were recorded for each of the three experimental…
Answer a: Coefficient of the Price of pizza: This coefficient identifies effect of Price of Pizza. This term provides information that how the average demand for pizza can change with the change in the price of Pizza changes. The Coefficient is -100P where P is the price of Pizza. If there is increase in one unit price of Pizza then the demand for pizza decrease by 100 units. Because -100 X 1 will result in decrease by 100 and if P is 2 then decrease will be -100 X 2 = -200. Coefficient of the…
Government taxation and government benefits attempts to push the curve inward. Lorenz curve measures income equality distribution. The Gini coefficient measures the area between the 45-degree line and the Lorenz Curve divided by the entire area between the 45-degree line, where 0 equals absolute even distribution of income/equality. With that said: 1. Table 4.2 shows that Gini coefficient has increased from .349 in 1970 to .469 in 2005, indicating that income inequality in the has been a.…
Inequality will be produced between states, but also within states among different classes. First, this paper will examine inequality within state borders. The Gini coefficient is a tool used to measure the income distribution within the country. A Gini coefficient of 0 means equal distribution of income, while a Gini coefficient of 1 is the most unequal distribution. When the income data is examined in quintiles, one will see inequality rising. The interesting factor being income inequality…
out of poverty. But there are people still suffering from absolute poverty from long-term unemployed, low-income households, rural-urban migrant workers and farmers living in rural areas today. The incomes of the poor have been growing, yet it appears that the rich are also getting richer much faster. This is due to development policies that favor only in heavy industry, cities and special economic zones in coastal areas. As a result, urban residents earned approximately twice more than those…