Statistical hypothesis testing

To assess the overall model fit of the measurement model, confirmatory factor analysis (CFA) was performed. The measurement properties resulted from CFA are summarized in Table 3. In this study, the chi-square statistic indicated the overall model was not fit very well (x^2 = 527.397, p < .001). However, The value of the normed chi-square static to sample size, showed that the model fit the data well with x^2/df at 2.028, which was lower than the recommended threshold of 3. In addition, the…

The null hypothesis of this test is that the past p values of X are not helpful to predict Y (X does not Granger cause Y). The alternative hypothesis is that the past p values of X are useful to predict Y (X Granger causes Y). p is the lag length of the Granger causality test and the results of the test depend on the chosen lag…

Introduction The propose of this experiment was to see if we could conducted an experiment that we could elect data and act our hypothesis about sordaria. We hypothesized if tan and black sordaria got placed together to cross over, we could expect out of 50 sordarias that 27 would cross over and 23 would not cross over. Some research has brought up some discussion about how much tan or black sordaria is one the agar square to begin with. (Kitani 1961) If these numbers are more than the other,…

Statistical Research An interesting topic to study would be the way geriatric patients are being treated in health care facilities. This is because as the elderly are getting closer to the end of their lives, many are starting to decline. Meaning that the elderly can become less verbal, making it harder for them to communicate and carry a conversation. Therefore, does this make it harder on the caregiver to provide the proper care? For an example, as the nurse taking care of an elderly…

In addition, the quadrat sampling is simple and with the table and the performance curve we were able to find the density and the area. The data can be analyze in with the curve or with the table. Both of the information provided in the curve and the table shows that 3 is the density of pill bugs in the area. The second method for estimating abundance is the mark recapture method. When performing this method the average population estimate is 190.211 beans. The standard error is 5.15812 and…

2. Demonstrate which tests have improved, which have gotten worse, and which have stayed the same. If any tests have gotten worse, please explain why you think this has happened. If any tests have improved, that are NOT the component that you have been working on, please explain why you think this has happened. (2) All my test have improved except my BMI and my waist-to-hip ratio. To explain, my BMI has increased by 0.2 because my weight increased due to the fact that I gained muscle mass.…

Results In the univariate analysis factors race and side proved to be insignificant by the Wald test at 5% significance level. Hence the eruption sequence does not significantly differ among the Races and remains unchanged between left and right side in the mouth. Then a multivariate CoxPH model was fitted using variables District, SS, gender, jaw and type which were the significant variables in the univariate analysis. These five variables continued to be significant in the fitted multivariable…

However, even though this is the population from which a sample was taken for the research, it may be assumed that ultimately the goal of the study is to define the population as all workers in Taiwan, for purposes of extrapolation of the data. Additionally, only respondents holding a full-time job were selected for the analysis in order to highlight the potential effects of work/family conflict (Lu et al., 2011). Description of Data and Descriptive Statistics A wide variety of data was…

CHAPTER IV RESULTS AND DISCUSSION Table 1: Relationship between Achievement Motivation and Aggression among Inter Collegiate Hockey Players Variable N M SD df r Achievement Motivation 100 26.28 5.72 98 -0.09 Vs. Aggression 11.15 2.58 rtab (98) = 0.19 It is apparent from the table 1 that obtained value of correlation coefficient (-0.09) is less than the tabulated value of correlation coefficient (0.19). It means there is no significant relationship found between…

The Vitruvian Man Experiment Sasha Trimmingham Partner: Carlos Cruz Class: Anatomy and Physiology Teacher: Ms.Grayek Problem: Measuring from the chin to the hairline of multiple subjects will not have the same results Hypothesis: If the bottom of the chin to the top of the head is measured it will be greater than one eighth of a person’s height. Materials • 10 face • 10 body • Meter stick • Ruler • Pen/marker • Paper • Tablet Procedure: 1. Gather all materials 2…