Hypothesis testing

In radiation therapy, bolus is a modality that helps compensate for differences in body contours, stop skin sparring, and to raise dose buildup on the patient’s skin (Washington, p. 171). Bolus is a tissue equivalent material, but there is not just one type of bolus. Superflab is a commercial bolus that most clinical sites use, but other bolus variations are also available for use. There is no study that compares Superflab, neon green Play-Doh, orange Play-Doh, and uncooked rice for providing…

Students in the online sections should email their cases to their online TA. Name: Jennifer Johnson Zhao Jin OIS – 3440 Applications of Business Statistics Section “00” Instructor: Professor Tariq Mughal Case 10.1 Motive Power Company – part 1 Executive Summary In case 10 .1 Motive Power Company Part 1, manufacturing manager Cregg Hart is approached by another supplier for rivets. Motive Power is very keen on their quality and are interested in evaluating the new rivets by…

Autocorrelation is not expected to be an issue with the model, given that the it is not using time series data, and it can therefore be assumed that there is no autocorrelation present in the model. To make sure that there is no perfect collinearity present in the model, it is recommended to run a collinearity test of the model (see: Exhibit 1.1). If a variable generate a VIF (Variance Inflation Factors) value above 10.0, the model might have a collinearity problem and attempts to correct the…

(Massy-Westropp, Nicola M., et al., 2011). This experiment seeks to explore the distinction of gender may potentially have on force exertion. Male physiological mechanism generates more force in comparison to the fairer sex in both hands. The null hypothesis is that the gender of the participants is not relevant and that there will not be a difference in the force being exerted by either gender. Materials and Methods…

be more statistically significant for higher education, rather than lower educational levels. For the results from the independent variable, yearly median income, only dependent variables Associate’s degree through Doctoral degree reject the null hypothesis, and are statistically…

There is little doubt public education in the United States is under intense scrutiny from the American public in recent years. In Mississippi, years of negative student outcomes have created a great deal of negative publicity for the state’s public schools. It is important for educators, whether at the district level, research level, or policymaking level, to continue to study available data to identify areas of weakness with the realm of education and work collaboratively to remedy those…

Final Summary Essay (25%) Grading Rubric for Final Summary Essay CRITERA Total Pts Excellent (A) Good (B) Average (C) Below Average (D) Failing (F) Thesis (10pts) 50 Pts Includes an insightful thesis statement, with a clear introduction and conclusion. Thesis fits the parameters of the assignment. Includes a thesis statement, with an introduction and conclusion. Thesis fits the parameters of the assignment. Thesis statement is unclear. Introduction and conclusion are muddled and may not serve…

According to graph, the survival curve of intervention group is above the survival curve of control group, which means, the higher rate of myocardial infarct in the control group. Thus, the intervention group has the better survival than control group.The hazard ratio is 0.57 (95% CI 0.35 to 0.87) Intervention the term intervention[T.Intervention] to the left of the results indicates that intervention=1 is the numerator of the hazard ratio. In this case, the hazard ratio is 0.57 which indicates…

It is well known that the temperature that a plant is grown in greatly affects the manner in which that plant grows. If the conditions are too extreme for a plant, then that plant cannot be as productive as other members of its species grown at less extreme temperatures. Such is the case of the pepper or tomato plant; if temperatures are too high for these plants, then the pollen these plants produce becomes inviable and these plants cannot successfully reproduce (Environmental Factors That……

(2016) tested the DKT2 instrument by conducting a study on two samples of diabetes patients. The reliability or internal consistency of the instrument was determined using Cronbach’s alpha while the construct validity was determined by performing hypothesis tests to confirm the relationships between test scores and related variables (Fitzgerald et al., 2016). The findings of the study showed that the DKT2 instrument is both reliable (alphas ≥ .70) and valid. In this context, the main researcher…