Immigration in the 19th Century, Teddy Roosevelt, and Labor Unions Essay

Immigration in the 19th Century, Teddy Roosevelt, and Labor Unions - Essay Example During the time of the great immigration, all the people needed were a boat ticket or in the least other means of transport to get to America. Thus, the shipbuilding industry facilitated the immigration significantly. During the agrarian revolution and the following years, several people came into America as slaves, to work in the factories and farms of the people. However, the immigration wave from the period 1820s to 1890s marked the observable immigration process. The immigrants in this period were mainly from Ireland and Germany, which brought about 5 million immigrants. The migration was because of includes famine and poverty in Ireland and political instability in Germany. Additionally, there were other immigrants, including from France, Canada and Sweden. Along these Europeans also came about 90000 Japanese and 300000 Chinese, whose chief reason was to make money for the Japanese and flee the opium war for the Chinese (Alexander, 2007). The industrial revolution further attracted more immigrants from the year 1890 to 1919. The immigrants into America this period constituted people from Italy, Austria, Hungary, Russia, Ireland and Great Britain. Conversely, with the arrival of the World War , the immigration declined. Nonetheless, over 9 million immigrants already settled in America (Alexander, 2007). The immigration into America took root from three reasons. Some were economic reasons, which featured search for wealth and employment, political reasons, which featured escape from the warring countries, and religious reasons, featuring trials and executions due to religious beliefs. The people as they migrated, due to the high numbers and inadequate housing, settled in groups in what grew into slum settlements. Additionally, due to the influx of people, unemployment rates increased as well as, the income of families (Alexander, 2007). The immigrants grew the American economy stronger. However,

Pig Growth Rates in Vietnam Article Example | Topics and Well Written Essays - 2000 words

Pig Growth Rates in Vietnam - Article Example The data of litter mortality, birth weight, farm of origin, year of birth, and weight of big after twenty one days concerning a sample of one thousand pigs were collected and recorded. The purpose of the study is to compare growth performance of these two breeds of pigs by analyzing the effect of the different factors monitored in isolation and combined on the growth of pigs represented by their average weight after twenty one days of their birth. To determine the relationship between the Day 21 average piglet weight and the various influences monitored during the experiment such as breed, farm of origin, year of birth, litter mortality and birth weight, the following Ordinary Least Squares (OLS) regression analyses were examined: The non-numerical value of Breed was coded numerically so that Breed equals one for Landrace (L) piglets and equals to zero for Yorkshire (Y). Regression analysis was applied with the numerical representation of breed as the independent variable and the dependent variable Day 21 average weight. Table 1 summarizes the results of the regression analysis. Table 1 shows adjusted R-squared of -0.00078 which means the independent variable breed predicts 0.07% of the dependent variable Day 21 average piglet weight. T-stat for this variable is 0.46674 so it is statistically insignificant. Both values indicate changes in breed do not affect the Day 21 average piglet weight. Regression analysis was applied... 0.000218 Adjust R2 -0.00078 Standard Error 0.793569 Observations 1000 Table 1 shows adjusted R-squared of -0.00078 which means the independent variable breed predicts 0.07% of the dependent variable Day 21 average piglet weight. T-stat for this variable is 0.46674 so it is statistically insignificant. Both values indicate changes in breed do not affect the Day 21 average piglet weight. 4.2 Analysis II: Relationship between Day 21 Average Piglet Weight and Farm of Origin The non-numerical value of the farm-of-origin variable is numerically encoded to allow statistical analysis of the variable using the following code shown in table 2. Table 2: Encoding of Farm of Origin into Number Farm of Origin Numerical Code A 1 B 2 C 3 D 4 E 5 F 6 G 7 Regression analysis was applied with the numerical representation of farm of origin as the independent variable and the dependent variable Day 21 average weight. Table 3 summarizes the results of the regression analysis. Table 3:Regression results for Day 21 Average Piglet Weight as a function of Farm of Origin Independent Variable Enumerated Farm of Origin Dependent variable: Day 21 Average Piglet Weight Constant 5.038045 Coefficient -0.04348 T Stat -2.87992 R2 0.008242 Adjust R2 0.007248 Standard Error 0.790379 Observations 1000 Table 3 shows adjusted R-squared of 0.007248 which means the independent variable farm of origin predicts 0.7% of the dependent variable Day 21 average piglet weight which is still a small influence but with more effect than the breed variable. T-stat for this variable is -2.87992 so it is statistically significant. Both values indicate the limited effect of breed in Day 21 average piglet weight. The Day 21 weight can be predicted to some limited extent using the equation: Day 21 Average Weight