Statistical tests

positive controls, and test samples. Negative controls in the assay contained no LPS stimuli and no H. pylori product. Positive controls contained LPS stimuli without H. pylori product. Product samples contained H. pylori products at various concentrations and LPS stimuli. In separate wells, THP-1 cells were also exposed to H. pylori and its derived products without LPS stimulation to assess the immune activatory properties of H. pylori products. Each sample was assessed in triplicate. Assay components were added to the 96-well plate in a specific order to reduce cross-contamination and accidental activation of THP-1 cells. Assay components were added to the wells in the following order: 100 µL THP-1 cells (2 x 105 cells/well) was added to every…

Introduction The ANOVA and the t-test are both similar in that they can tell the difference between groups, however, the major difference is that the ANOVA independent variable can have any number of groups (Sukal, 2013). The question of interest for this mini-research proposal using the one-way ANOVA, is the following: Does the frequency in days of the week make a difference in having an ideal body weight? The one-way ANOVA is the most appropriate statistical test as the question identifies an…

of 13-35, which account for 21.6% of the total 97 in the sample. c. The mean level of the hour spent in the office during week 2 is 47.47 hours, with the standard deviation of 17.06. The distribution is slightly negative skew (-0.237), although in an acceptable range suggest that slightly more samples spend more hours in office than the average. The distribution’s value for kurtosis (-1.005) exceeds the acceptance level (value between 1.0 and -1.0.), implying it has a ‘Platykurtic’…

with other ethnicities and cultural backgrounds. The aim of their study was to assess the measurement invariance (a narrow series of statistical procedures utilized to determine if test scores are performing similarly across groups) in the RIAS. For their study they used data from students referred for special education services in a public Midwestern school district Black (n = 296) and White (n = 302). They found that there was strict invariance. Additionally they found between-group…

twice a week for 15 weeks. All participants completed a pre-test and post-test to assess their current knowledge, attitudes, and practices. Both the control group and the experimental group completed a pretest questionnaire that included descriptors, with the purpose of capturing the subjects KAP towards nutrition. Five weeks concluding the program, both the control group and experimental group completed a posttest questionnaire that excluded descriptors. The questionnaires contained five…

In an educational environment, any strategic plan that aims to improve a school system is well founded in data analysis and evaluation. The Oak Ridge City School System is developing a plan that could improve the core task of teaching and learning across the district for the entire student population. Based on statistical data calculated for a variety of variables, an initial analysis of the eight schools in the system can be developed in order to develop the strategic plan for improvement…

What is the correlation? Comparing artists of different genres, time periods, and ages, I will be looking to see what correlates between various black and white female artists. I wanted to keep it strictly female because of the advantages men have versus women in the industry. All of the artists have similar audiences and number of Grammy awards won. Rihanna and Taylor Swift are compared because of their similar number of years active. Nicki Minaj and Iggy Azalea are compared because of their…

For example; “The ProQOL assessment was scored based on two components: compassion satisfaction and burnout” (Horner et al.,2014, p.198). There are also statistical t-test values, and p-values expressed as percentile which predicts accuracy of intervention. (Melnyk, & Fineout-Overholt, 2015). Percentage of class participation was 60% which could be a reason for type II error. Population fall out of 15 participants is a significant number to be reported. Added to the above, the researchers…

increase of radicle length within lentil bean seeds was affected by the environmental aqueous solutions, which was made up of either a table sugar, dextrose or a control. It presented that there was not a statistical difference between the table sugar or dextrose aqueous solutions in comparison to the radicle lengths since the P values were less than 0.05. Although, there was a statistical increase in radicle length with the comparison to the control. If these seeds were able to reach the…

national average) and to observe any significant differences between the individual respondent groups (“Always”, “Usually,” or “Sometimes” or “Never”). The ANOVA will also allow for the p–value, Mean and the Standard Deviation of each composite topic. Furthermore, a Tukey’s significance test was performed after the ANOVA on four of the composite topics (Nurse communication, Doctor communication, Medicine instructions, and Home care information) to further compare the significance of the groups,…