Answer:
C. a third variable, such as students' home environment, must have caused students to both drink more non-diet soda and engage in aggressive acts
Explanation:
From the question, we are informed about An observational study that was conducted in inner-city Boston approximately four years ago demonstrated that high-school students who consumed more than five cans of non-diet soda every week were between 9 and 15-percent likelier to engage in an aggressive act compared with counterparts who drank less non- diet soda. In this case, we can reliably conclude that a third variable, such as students' home environment, must have caused students to both drink more non-diet soda and engage in aggressive acts.
Observational studies can be regarded as studies whereby
researchers make observation about different effect of factors such as
risk factor, home, as well as environment and diagnostic test that affects the experiment. In observational studies Variables are very crucial, A variable can be anything that that is liable to change, it can change and it can be changed as well. They are factors which the observer can manipulate or control for when carrying out experiments.
Answer:
Explanation:
It may affect the result of the study, having a large samples will enable the researcher have enough variations that may occur among the sample, reduction in the number of children will reduce the amount of variation the is needed in the experiment. A large sample with adequate variations help to minimize error that could occur considering small samples but when a sample is small a it doesn't consider all possible effect the result may be bias.
Reduced sample size may not be enough to represent an experimental units hence there maybe need to revisit the experiment again when adequate samples size is available. It was more time
Answer: A
Explanation:
Tax efficiency is an endeavor to limit charge obligation when given a wide range of monetary choices. A money related choice is supposed to be charge productive if the duty result is lower than an option monetary structure that accomplishes a similar end.
i hope this helps
Answer:
Civilizations do not exhibit social stratification.
Explanation:
In essence, social stratification is the starting point of human civilizations. Since the early moment of an elite group, because of their political or economical powers, or supported by a pre-established belief, this elite group become governors. Then, they separate people based on their possessions, beliefs or influences, and secure the maintaining of this system with an organized political structure.
Answer:
Welchs’ food has chosen their ERP selection between SAP and Oracle. Although they have already decided which vendor they will use, they used this opportunity to get a lower price as both vendors are interested in the business by getting both vendors into a bidding war. At the end, they have chosen Oracle not just because of the discounted price but also the functionality, ease of implementation and flexibility.
Explanation:
The total cost of ownership (TCO) is the total cost of implementing an ERP system from purchase to ongoing support or maintenance.
It is difficult to use TCO in comparing ERPY systems because its accuracy in ERP systems have been marginal. It is also because different vendors use different platforms, some of them uses a powerful hardware and software to provide the service and some vendors use a standard platform to be able to meet the organizations’ requirements. It is worth to include this in the selection process.
Defined functional requirements is beneficial in selection of an ERP system even if a part is not required because it will clearly show what functions and system specifications are required and how it matches the organization current process.
