A Sample of 21 Elements Is Selected to Estimate a 90

question 45

Multiple Choice

A sample of 21 elements is selected to estimate a 90% confidence interval for the variance of the population. The chi-square value(s) to be used for this interval estimation is (are)

• A)-1.96 and 1.96
• B)12.443
• C)10.851 and 31.410
• D)12.443 and 28.412

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Definitions:

Brainstorming

A creative group problem-solving and idea generation technique where participants are encouraged to come up with thoughts and solutions without judgement.

Groupthink

A psychological phenomenon that occurs within a group of people, where the desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.

Nominal Group Technique

A structured method for group brainstorming that encourages contributions from everyone.

Constructive Conflict

A situation where differing views are debated in a positive, respectful manner, leading to improved decision-making or solutions.