Internet Exercises Speech or Presentation Example | Topics and Well Written Essays - 1500 words

Internet Exercises - Speech or Presentation Example By extreme we mean: far from what we would expect to observe if the null hypothesis is true. In other words, a small P-value indicates that observation of the test statistic would be unlikely if the null hypothesis is true. The lower the P-value, the more evidence there is in favor of rejecting the null hypothesis. The z-test for a mean is a statistical test for a population mean. The z-test can be used when the population is normal and ÏÆ' is known, or for any population when the sample size n is at least 30. The test statistic is the sample mean and the standardized test statistic is z. A chi-square test can be used to test if the variance (square of standard deviation) of a population is equal to a specified value. This test can be either a two-sided test or a one-sided test. The two-sided version tests against the alternative that the true variance is either less than or greater than the specified value. The one-sided version only tests in one direction. The choice of a two-sided or one-sided test is determined by the problem. For example, if we are testing a new process, we may only be concerned if its variability is greater than the variability of the current process. Sample Problem: A hospital administrator believes that the standard deviation of the number of people using outpatient surgery per day is greater than 8. A random sample 15 days is selected. The data are shown. At ÃŽ ± = 0.10, is there enough evidence to support the administrator’s claim? Assume the variable is normally distributed. Sample Problem: A researcher wanted to see if women varied more than men in weight.   Nine women and sixteen men were weighed.   The variance for the women was 525 and the variance for the men was 142.   What can be concluded at the 0.05 level of significance? Since we are testing to see if the variance for the women

Implementing Cloud Computing Programs Research Paper

Implementing Cloud Computing Programs - Research Paper Example The process of implementing cloud computing programs is detailed particularly because of the several steps that the interested parties need to go through in the course of undertaking the project. As such, all entities should consider employing strategies that are in line with their ventures. The next section highlights some of the strategies that are far-reaching in ensuring a successful implementation of cloud computing programs. Â  Planning is particularly imperative because it provides the interested parties with the opportunity to analyze and re-evaluate their ability to handle the key steps of the implementation process contentedly. This includes forecasting on the entire process and the parties who will be involved in procuring all the needed hardware and software as well as the mechanism of going about the installation process. Similarly, planning entails forecasting on how the installed software, hardware, and the backup systems will be tested (Gulla, 2013). Also, planning is far-reaching given that it enables the interested parties to understand the alternatives at its disposal, the scope of technology and the business model. Â  Given the number of cloud installation programs that are currently going on as well as the planned ones, it is important to take note of the fact that there may be lack of enough expertise and talent to handle all of them. In that regard, it is imperative for organizations to ensure that they have key cloud computing experts at their disposal. Interested entities should, therefore, consider not only recruiting, but also training and retaining available staff.