Why inference about mean luck score may not be very useful

Reference no: EM131423566

Do you feel lucky? Children in a psychology study were asked to solve some puzzles and were then given feedback on their performance. Then they were asked to rate how luck played a role in determining their scores.11 This variable was recorded on a 1 to 10 scale with 1 corresponding to very lucky and 10 corresponding to very unlucky. Here are the scores for 60 children:

(a) Use graphical methods to display the distribution. Describe any unusual characteristics. Do these characteristics cause you concern about using the t-based methods of this section? Explain your answer.

(b) Give a 95% confidence interval for the mean luck score

(c) Based on the distribution in part (a), one could argue that there are two distinct groups of children. With that in mind, explain why inference about the mean luck score may not be very useful.

(d) The children in this study were volunteers whose parents agreed to have them participate in the study. To what extent do you think your results would apply to all similar children in this community?

Reference no: EM131423566

Questions Cloud

Analyze new forms of leadership : Analyze new forms of leadership that will support school transformation. Determine whether any of these new forms of leadership appeal to you and explain why or why not

Explain the differences between a smdp : Explain the differences between a SMDP [Single Member District Plurality, otherwise known as a First Past the Post (FPTP)] electoral systemand an Alternative Vote electoral system, List 1 advantage an Alternative Vote electoral system has over the..

Describe the goals and objectives of the project : Describe the scope of the project and control measures. Describe the goals and objectives of the project. Give a detailed, realistically estimated cost analysis of the entire project.

Founding father of modern management : Peter Drucker is considered the founding father of modern management. How did he influence the business of management? Discuss the benefits of Management by Objectives; discuss the criticisms.

Why inference about mean luck score may not be very useful : The children in this study were volunteers whose parents agreed to have them participate in the study. To what extent do you think your results would apply to all similar children in this community?

What is a focus group : What is a focus group? When do businesses utilize a focus group? How do focus groups help a business with their product/service?

What type of joint training programs do you see : As a supervisor, how do you see your role in promoting this positive relationship? What type of joint training programs do you see as being useful between your department and the UPD

Life of a procurement : How do procurement change requests get generated during the life of a procurement? Cite an example of a potential change request from either the buyer or seller.

Construct confidence interval for average deficiency : Carry out the test, give the P-value, and state your conclusion.- Construct a 95% confidence interval for the average deficiency in caloric intake.

User Account

All Pages