Sample size

get the precipitate solution. Next, the precipitation solutions were dried at 24 hours for 80°C. Then, the dried sample was crushed and sieved to obtain the fine powders. The 1 grams of mixed powder are compacted at 2.5MPa load by using stainless steel mold (13mm). The mold should be clean by using WD40 or silicon spray which act as a lubricant to remove dirt and to remove the sample easily after…

were used to investigate if stock returns have any relationship with variables, such as size, beta, dividend yield, and risks. The sample covered periods of 1873 to 1914. Using Fama-MacBeth regression model, the study finds that average stock returns have no relationship with size, risk, and beta, but establishes weak relationship between dividend yield and stock returns. The study finds strong momentum in the sample data. The results provide some very important implications to investors and…

α-Lactalbumin, a multifunction protein in milk, forms an enzyme complex with galactosyltransferase that catalyzes the last reaction in lactose synthesis.1 α-Lactalbumin has one Ca2+ binding site and several Zn2+ binding sites as well as many intermediary folding states, making it ideal for research involving the effects of cation binding on protein interactions as well as research on protein misfolding.1 α-Lactalbumin gives milk an antimicrobial property, making it important for infant health,…

were obtained. Initially, the bulk heavy mineral sample was mapped using a high resolution Field Emission Gun (FEG) equipped EPMA (JEOL 8500F Hyperprobe). It was done in order to determine the distribution of major and minor mineral phases within the sample, and next, to examine the chemical homogeneity of the ilmenite grains. In FEG-EPMA mapping, the operating conditions were an accelerating voltage of 15 kV, a beam current of 100 nA, a step size of 2 mm (in x and y), and a counting time of 25…

There is currently a nurse shortage that is increasing in intensity every year and as stated by the U.S. Department of Health and Human Services Health Resources and Services Administration, by the year 2025 Arizona is estimated to have the greatest shortage of nurses. This shortage could be the result of a high turnover among nurses as a result of burnout. The nursing shortage forces nurses to increase their workload, meaning their patient to nurse ratio. With an increase in workload more…

separating other types of molecules, like proteins. 2. Where are DNA samples placed in the gel? DNA samples are placed into wells at one end of the gel. 3. What makes the DNA move across the gel?
By adding electrical current DNA moves. 4. Why do DNA fragments of different lengths travel to different locations on the gel? **Short fragments move through the wells in the gel more quickly. Over time shorter fragments in the sample will move further away from the starting point than the longer…

Is the sample size appropriate? Why or why not? The population obtained using the convenience sample would reflect individuals 18 years of age and older seeking treatment for chronic pain related conditions. The sample size needed for the study would consist of 30 participants for each variable with a total of 2 variables, 60 participants plus a 10% attrition rate…

results of this test statistically significant? .08>.05 Which means the results are not significant. The hypothesis will be accepted. Was the sample appropriate for this study? The test is appropriate. Discuss how you would conduct a follow up study to this one. A follow up study can be conducted by using a paired test because these samples are independent samples.…

4(a). The decrease in the initial permeability of the Ni–Zn ferrites can be explained using the following equation μ^'=(M_s^2 D)/√(K_1 ), where µʹ is the initial permeability, MS the saturation magnetization, D the average grain size and K1 the magneto-crystalline anisotropy constant. As µʹ proportional to the square of the saturation magnetization and saturation magnetization is decreased with Sn concentration, hence the value of µʹ is expected to be decreased. Tetravalent Sn4+…

appear to be very different between the control and experimental group, which should have been assumed. Once the sample was subtracted from the baseline for each day, there was a way to compare the control days to the experimental days while accounting for daily fluctuations of urine osmolarity. The asparagus treatment did result in a much smaller difference between the baseline and sample collections (Figure 1.), even though this finding was not significant (p > 0.05; Table 2.). A greater…