Chapter 9.2, Problem 64E

a.

To determine

A completely randomized design for the given experiment is to be described.

Answer to Problem 64E

A completely randomized design is:

  

Explanation of Solution

A simplest experimental design in terms of the convenience and analysis is well expressed with the help of the statistical term, known as a completely randomized design.

The treatments are randomly assigned from the subject through the use of this design. So, a completely randomized design for the subject of $10065$ people aged from $20-54$ who filled a claim for the unemployed insurance is:

  

Conclusion:

Hence, a completely randomized design is well described above.

b.

To determine

A random number generator to the treatments assign is to be explained.

Answer to Problem 64E

A random number generator to the treatments assign is listed as:

The subject $1$ ; $5364$ is selected as for treatment $1$ .

The subject $2$ ; $5668$ is selected as for treatment $1$ .

The subject $3$ ; $1261$ is selected as for treatment $1$ .

Explanation of Solution

Given:

Number of subject: $10065$

Calculation:

Need to give a every subject a unique integer number from number system as $1-10065$ . Now, need to choose the line $137$ from table B to select the first three subjects for the treatments:

  $5364566812612414783612609153739848114592$

Here, check every consecutive number of four consecutive numbers. If the first digit is one $1$ that mean it corresponds with a subject.

And if the number corresponds with a subject then you should choose this subject:

The subject $1$ ; $5364$ is selected as for treatment $1$ .

The subject $2$ ; $5668$ is selected as for treatment $1$ .

The subject $3$ ; $1261$ is selected as for treatment $1$ .

Conclusion:

Hence, random number generator is well described above.

c.

To determine

The purpose of the control group for this cash to find work setting is to be explained.

Answer to Problem 64E

The purpose of the control group for this cash to find work setting is to eliminate the outside effects.

Explanation of Solution

A baseline group which receives no treatment or act as neutral treatment then it is known as the control group in an experiment.

To eliminate the outside effects a control group is used. The outside effects are born due to the following cause:

• Chance
• The environment
• The employers

It mostly used for the comparison between two group to result out the best group for the experiment.

Conclusion:

Hence, to eliminate the outside effects a control group is used.