Statistical dispersion

ELISA practical answer sheet Connie Duffy – B00609996 1. In the assay you have used both a positive and negative control. What is the purpose of both these controls? Positive control: Positive control is used within ELISA to observe what a sample well would look like with a present antigen. For example an endogenous soluble sample can be used which consists of the protein that is being recognised. It basically establishes the reactions when there is supposed to be one, which in turn displays…

Introduction Sleep is an important component for maintaining, sustaining, and optimizing academic performance. Different lifestyle needs fluctuate the amount of sleep between individuals and often led them to attain inadequate sleep. Sufficient sleep has been linked to the enhancement of emotional and social function, whereas insufficient sleep reduces cognitive function and negatively affects academic readiness (Deuster & Yarnell, 2016). Researchers at the University of California, Los Angeles…

To assess Walter’s receptive language, The Peabody Picture Vocabulary Test (PPVT) (Dunn & Dunn, 2007) and the Test of Language Development – Primary 3rd Edition (TOLD-P:3) (Newcomer & Hammil, 1988) were administered. Walter earned a score on the PPVT yielding a in a percentile rank of <1, which corresponds to a profound disorder in receptive language. Scores for the TOLD-P:3 could not be determined due to incomplete testing despite maximal verbal, visual, and/or tactile cueing provided.…

“The golden ratio is a special number found by dividing a line into two parts so that the longer part divided by the smaller part is also equal to the whole length divided by the longer part.” (Elaine J. Hom )After the 21st century, golden ratio represents as a phi in Greek alphabet. The equation for golden ratio is a/b = (a+b)/a = 1.6180339887498948420 …,but if we round it two places, it will be 1.62.the golden ratio is also called the golden mean, golden section, golden number and so on. The…

This particular SPC checklist contains a lot of detail that is required for Wal-Mart product development as quality and great products produced by the company will easily attract potential customers. SPC is a statistical method of separating special-cause variation from natural variation to eliminate the special causes and to establish and maintain consistency in a process. In order for Wal-Mart to develop a quality product or products in the market it has to prepare…

“ The issue is not whether there is variation, but whether the variation is significant”. During your research variation will always occur, it is up to the research to determine the threshold, when does variation become significant or just coincidental. One of the most commonly used Confidence Interval is 95%, if the sample is due to coincidence, the difference is not significant we will fail to reject the null hypothesis, however if the difference is significant we will reject the null…

Question 1. What is the goal of utility analysis? Why do recent models of utility fail to accomplish this goal? Answer Utility Analysis (UA), not only is the process where the description and prediction determines the desirability of decisions; it provides formulas for computing the dollar value of human resource programs (Boudreau, 1987). UA also examines how the information obtained are going to affect manager’s decisions. Utility refers to the expected gains to be derived from using a…

children age 6 years or less. The Logistic Regression Model would be used in our research because the dependent variable is a categorical variable which is define at two levels (vaccination behaviors). The Logistic Regression model is defined as a statistical analysis that used to measure the risk or odds of an event between the categorical dependent variable (vaccination behaviors in children of age 6 years or less) and one or more independent variables after controlling for number of…

To examine how well participants were able to recall, each passage was divided up into 30 unit ideas that were used to counting up how many idea units were written correctly. For a majority of tests there were two raters, and we found between the two raters scoring “The Sun” was in agreement 97% of the time and “Sea Otters” was in agreement 94% of the time. Our first hypothesis was that recall for the study/study condition will be higher than for the study/test condition for the five minute…

hypothesis is incorrect or accepting the alternative hypothesis when the null hypothesis is correct. A type II error would be concluding that the null hypothesis is correct when in fact it is false, and the alternative hypothesis is actually correct. Statistical power in this study would be stating that between midterm tests grades of online and campus college algebra learners there is no difference when there is no difference between the…