Answer:
The correct answer is The study has a problem with the External validity
Explanation:
External validity in research terms is the validity the research has in the outside world or in the applied social reality of the field of study, it is the extent in which the results and conclusions of the study can be applied and generalized to ohter external factors, therefore in this case, when the researchers did the experiment only with motivated volunteers did not take into account that people outside may not have the same motivation, therefore the results may not be the same in the external social reality and thus having problems with the external validity.
The North China plain is a flatness which has been formed by the time with the sediments of the Yellow river.
As it was not uploaded an image to indicate where this plain is, a picture from google was chosen for this purpose giving some directions on a map of China.
Answer:
the answer is A: To appoint people to government officials
Answer:
C. giving consumers access to a wider variety of products.
Explanation:
Answer: b) Sensitivity analysis.
Explanation:
Sensitivity analysis is described as the assessment that reflects about strong condition of it.It works by describing the extent to which change or modulation can impact the values or model to become uncertain so that it can be split and place in the category source of uncertainty and related input.
Other options are incorrect because uncertainty analysis determines the uncertain property due to change.Probability analysis is carried out for evaluation of probability.Cost analysis is based on economic assessment.Thus, the correct option is option(b).
