Sample Descriptive Essay

when the sample size is large enough n>30, the population standard deviation is known, and population is normally distributed. Example: Is the mean of systolic blood pressure level for women use of oral contraceptives is identical with women does not use of oral contraceptives, the sample mean > 30, we known the population standard deviation and it is normally distributed. H0: µ1=µ2 H1: µ1≠µ2 2. t- test is used when the population standard deviation is not known, the sample…

each sample unit is not known, leaving the selection up to the researcher. In the case of Santé Fe Grill they should rely on probability sampling because each unit is identified. Under probability sampling, there is stratified random sampling. Stratified random sampling involves taking the population and diving them up into even smaller groups, known as strata. These groups will be divide with some they have in common, whether it be income or location. From there they would take random samples…

questioning and would use a similar tactic. Below I choose the question using this style focused on the area of racial discrimination as it is currently a hot topic and as a business major would affect my future organization. For instance, here is a sample question I would ask to find out how one felt about racial equality within their organization: a) Use the following scale to respond to each item on this survey. Response Scale: 1 = Strongly Disagree 2 = Disagree 3 = Agree 4 = Strongly…

Vincristine is the primary treatment for acute lymphoblastic leukemia (ALL) in children. Common toxicities include peripheral and autonomic neuropathies, which can be life threatening. Vincristine is metabolized extensively by CYP450 3A and its PK has a significant inter-individual variation. In addition to chemotherapy treatment, children are given antifungals for prophylaxis of infections. Itraconazole, voriconazole and fluconazole are commonly used agents. The azole family is an inhibitor of…

while some of these studies attempt to prove causation, it is impossible with a correlational design method. Regardless of a positive or negative correlation, it cannot be used to prove causation. In several of the studies there is a small sample size, or even a sample size that is not indicative of the entire population. Additionally there is no knowledge of whether or not the studies used a double blind technique. If a double blind technique is used there is no researcher bias. Without this…

Single-case designs are useful when researchers want to examine an individual’s unique behavior rather than focusing on the behavior of a group of participants; this makes case experiments an optimal technique for both clinical and counseling psychologists as well as behavioral analysts. While the name implies that only one subject is being studied throughout the whole experiment, this design can accommodate several individuals; although, typically this design is not used on large groups of…

Stress Management App Efficacy: The Impact on Negative and Positive Affect Do various stress management apps effect negative and positive affect differently? The present study consisted of a randomized comparative efficacy trial, which aimed to unveil whether three stress management applications differed in their impact on negative and positive affect. Participants completed a pre-test assessment of their experiences of various negative and positive affects. The pre-test assessment also…

The findings of this study on neurocognitive performance of high school athletes who incur multiple concussions suggest athletes with a history of 3 or more concussions are still impaired on cognitive tasks and concussion symptoms [6].The authors used a cohort study design, the IVs were concussion groups (0,1,2,>3), and time ( baseline, 3 days, 8 days), the DVs were neurocognitive test scores measured by Immediate Post Concussion Assessment, cognitive testing (ImPact), neurocognitive test…

correlation that “U.S. students suffering from Internet addiction: study Crackberry is no joke.” After assessing both the report and the study neither of these causal claim is warranted on the basis of this study due to problems with the representativeness, sample size, and the erroneous methodology…

president could get from the database, including the sample standard deviation, the sample mean, and the sample size, the president could figure out the number of WAR at the 90th percentile. Through conducting the Z test, the president could find the most competitive players from the candidates he chose previously and form a stronger…