The effect of a new drug on blood pressure. Testing Research Paper

The effect of a new drug on blood pressure. Testing - Research Paper Example Another reason for using the t-test is because a t-test is normally used when the standard deviation of the population is unknown. In this case we do not know our population. The t-test is also used when the purpose of the study is determining whether there is statistically significant difference between two independent sample groups. In this case the drug and the blood pressure are two independent variables. The z-test is not applicable in this case because it is normally used when the null and alternative hypothesis are stated (Tanner, 2016). In our case the two are not stated. The ANOVA on the other hand is normally used when carrying out a test using three or more variables (Tanner, 2016). In our case, we only have two variables. What would your choice of test depend on? For the test you select, explain your design and your comparison groups. Choosing the type of test to use in a particular study depends on: the type of the variables used either continuous or categorical, the number of variables to use in the particular study either one variables, two variables or three or more variables, the normality, how the variables are normally distributed and the nature of the variables, are they dependent or independent variables. The design in this case will be the number of patients to use in the study. Small number of patients will result in an inaccurate result and using a large number of patients will be risky to their health and lead to waste of resources. One should therefore use not so small neither not so large number of patients.

The Features Of Immigration Essay Example | Topics and Well Written Essays - 1000 words

The Features Of Immigration - Essay Example Legalization of the permits held by American immigrants would increase their wages. This has a multiplier effect on the entire economy and would result in an overall increase in the gross domestic product (GDP) by over 1.5 trillion dollars over the next decade. These increased amounts would result in greater employment levels, greater demand, exports, and output. Overall it would translate to better living standards for all the American people. On the other hand, mass deportations as proposed by some people would result in a decrease in the gross domestic product (GDP) by almost double this figure. This translates to about 2.05 trillion dollars over one decade. The difference between the two scenarios is over 3.5 trillion dollars. This clearly shows that immigrants positively benefit the American economy. Fighting an economic reality is not only a difficult endeavor, but it is also an endeavor whose chances of success are very slim. Americans are trying to fight an economic crisis oc casioned by mismanagement of their economy. The economy was brought to its knees through a misdirection of tax funds and a poor regulatory environment. Money that should be used at home in supporting new investments to increase employment is instead directed to wars that are not beneficial to the American people. The financial sector that triggered the collapse of the economy had prospered for many years under insufficient laws and regulations. In short, the prosperity was just a bubble that would eventually burst sooner or later. Rather than blame our problems on immigrants, it would be better to focus on the real issues. Such an approach will help us move forward and avoid similar problems in future. The truth is that immigrants do not violently rob Americans of their jobs. Rather than resort to empty rhetoric about their being in America and how it equals to fewer jobs for Americans, the question should be why they are in employment in the first place and not the Americans. As the poem So Mexicans Are Taking Jobs from Americans puts it, â€Å"Do they come on horses with rifles, and say, Ese gringo, gimmee