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vovikov84 [41]
2 years ago
11

What is the effect on the width of a confidence interval of quadrupling the sample size while holding the confidence coefficient

fixed?
Social Studies
1 answer:
saw5 [17]2 years ago
4 0

Quadrupling the sample size while holding the confidence coefficient fixed will not affect the width of the confidence interval.

<h3>What is Confidence coefficient?</h3>

This is defined as the confidence level in the form of a proportion rather than as a percentage.

Holding it fixed means no matter how the sample size is varied, the width of the confidence interval won't be affected. This is therefore the reason why quadrupling the sample size will have no effect and is therefore the correct choice.

Read more about Confidence interval here brainly.com/question/15712887

#SPJ4

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Answer:

Bronfenbrenner's theory describes<u> an ecosystem on which every human being develops and grows</u>.  

As a child, a person is involved with his/her family, school, friends, teammates, etc.  But also, there is a certain relationship with those elements affecting his/her parents, teachers, friend's families.  Those elements help a child to grow, but also, those relationships change in time.  And that evolution also affects a child.  

Explanation:

Elements of the ecosystem:

The ecological system is composed of the following elements:

  1. <em>Child</em>:  It is the central point of the system.
  2. The <em>Microsystem</em> is everything close to daily life.  This includes family, school, teammates, sports.
  3. The <em>Mesosystem</em> describes how each one of the elements of the Microsystem interacts between them.  For example, home and school, school and friends, friends and sports teams.
  4. The <em>Exosystem</em> refers to all those elements not directly related to the child, but have an impact on them.   For example, how is the situation on the teacher's home and family?  How is the mother's job situation?
  5. The <em>Chronosystem</em> describes how all the elements on the previous stages change through time, and how this affects a child's development.

Example:

A child was born in a single-parent home, receives lots of love, but the child is under the care of a grandmother. The parent is under an unstable work environment, the teacher is going through a divorce, and the extended family is in another country.  

Eventually, in time, the parent gets married, the grandmother dies, the teacher was able to save the marriage, but also the parent's job situation improves and now can spend more time at home.  One uncle moves to the same country bringing the child's cousins with him.    

All those present situations, but also their future evolution, mark a child and help to his/her development, socially and emotionally speaking.

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This was one of the programs established by US President Franklin D. Roosevelt. When he became President of the United States, one of his priorities was to help the American citizens who were suffering a harsh economic situation due to the consequences of the Great Depression. So President Roosevelt created a series of economic programs called the "New Deal."

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