I to Prevent Bias, the Level of Significance Is Selected

question 57

Multiple Choice

i. To prevent bias, the level of significance is selected before setting up the decision rule and sampling the population. ii. The fifth and final step in testing a hypothesis is taking a sample and, based on the decision rule, deciding if the null hypothesis should be rejected.
iii. When the null hypothesis is not rejected, the conclusion is that our sample data does not allow us to reject the null hypothesis.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (i) and (ii) are correct statements but not (iii).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Delphi Technique

A method of group communication and decision-making using a series of questionnaires to gather information and opinions from experts, aimed at reaching a consensus.

Rational Decision-Making Technique

A systematic process of defining problems, evaluating alternatives, and choosing optimal solutions based on logical and objective analysis.

Nominal Group Technique

A structured method for group brainstorming that encourages contributions from everyone and is used to generate and prioritize ideas.

Brainstorming

A method of generating creative ideas by encouraging free thought and discussion within a group.