Choose a correct answer for each of the following questions. 1. A basic assumpti

ID: 3058130 • Letter: C

Question

Choose a correct answer for each of the following questions.

1. A basic assumption of all inferential statistics is as follows:

a) the sample (s) must be selected at random

B) The measurements must be on an interval scale

C) sample size should be greater than 30

D) the elaboration of the conclusions for a population based on the results of a sample depend on the degree of reliability of the investigation.

2. Why is it important for research staff to maintain the integrity of the research protocol?

A. To provide a better working environment for the research team.

B) to make the study look more professional.

C) To ensure that the study is carried out correctly

D) to guarantee the publication of the results of the study

3. The scientific method is

a) acquired by the scientific practice using the Mann-Whitney test or

B) a process that verifies the analysis of variances

C) a series of systematic steps that leads us to a scientific knowledge

D) a process that is used in the Descriptive research

4. An investigation must obey the following characteristics except:

a) precision in the limitations of the investigation and its results.

B) should be based on data and not on opinions.

C) must have a probable hypothesis.

D) must be able to be reproducible by other investigators.

5. The establishment of a 95% confidence interval allows a researcher to indicate the values that comprise:

a) all but 95% of sample scores

B) 95% of sample scores

C) 95% of population parameters

D) The population parameters in 95% of these cases

Explanation / Answer