Hi there, I missed last week's lecture and am really struggling to complete this week's homework. Below are the questions and instructions provided. Thanks in advance for your help! General instructions • All numerical answers that required decimal places must contain 2 and only 2 decimal places. • Number your answers exactly as the questions are numbered. • Submit only your numbered answers to the questions nothing more. Scenario 1 – answer questions 1 – 12 based on this scenario Todd just got back his exam grades in three classes. In biology the class mean was 75.80 with a standard deviation of 5.15, Todd got an 84.00. In political science the class mean was 84.00 with a standard deviation of 5.50, Todd got an 84.00. In economics the class mean was 87.50 with a standard deviation of 5.60, Todd got a 84.00. 1. What is Todd’s z score for biology? 2. What is Todd’s z score for political science? 3. What is Todd’s z score for economics? 4. Which class showed the highest variability in scores? 5. Which class showed the lowest variability in scores? 6. Which class had the highest average test score? 7. Which class had the lowest average test score? 8. What percentage of the biology class scored higher than Todd? 9. What percentage of the political science class scored lower than Todd? 10. What percentage of the economics class scores higher than Todd? 11. Which class is Todd doing best in? State how you determined your answer. 12. Which class is Todd doing worst in? State how you determined your answer. Scenario 2 – answer questions 13 – 24 based on this scenario Maggie attends Happy Days preschool. The preschool assessed the children’s motor skills (i.e. the ability to tie their shoes), social skills (i.e. sharing and saying please) and school readiness (i.e. knowledge of ABC’s & basic counting ability). The motor skills test has a class mean of 9.50 with a standard deviation of 1.25. The social skills test has a class mean of 10.25 with a standard deviation of 1.10. The school readiness test has a class mean of 11.43 with a standard deviation of 1.30. For each test higher score means better performance of that skill. Maggie’s parents are given a report card that indicate Maggie’s Z scores on each test which are motor skills = -0.72, social skills = 1.21 & school readiness = 0.00. 13. Which skill is strongest for Maggie? State how you determined your answer. 14. Which skill is weakest for Maggie? State how you determined your answer. 15. What is Maggie’s raw scores for motor skills? 16. What is Maggie’s raw score for social skills? 17. What is Maggie’s raw score for school readiness? 18. What percentage of her class scored higher than Maggie on the social skills test? 19. What percentage of her class scored lower than Maggie on the motor skills test? 20. What percentage of her class scored higher than Maggie on the school readiness test? 21. For which skill was the class average highest? 22. For which skill was the class average lowest? 23. For which skill was the class variability highest? 24. For which skill was the class variability lowest?
Hi there,
I missed last week's lecture and am really struggling to complete this week's homework. Below are the questions and instructions provided. Thanks in advance for your help!
General instructions
• All numerical answers that required decimal places must contain 2 and only 2 decimal places.
• Number your answers exactly as the questions are numbered.
• Submit only your numbered answers to the questions nothing more.
Scenario 1 – answer questions 1 – 12 based on this scenario
Todd just got back his exam grades in three classes. In biology the class mean was 75.80 with a standard deviation of 5.15, Todd got an 84.00. In political science the class mean was 84.00 with a standard deviation of 5.50, Todd got an 84.00. In economics the class mean was 87.50 with a standard deviation of 5.60, Todd got a 84.00.
1. What is Todd’s z score for biology?
2. What is Todd’s z score for political science?
3. What is Todd’s z score for economics?
4. Which class showed the highest variability in scores?
5. Which class showed the lowest variability in scores?
6. Which class had the highest average test score?
7. Which class had the lowest average test score?
8. What percentage of the biology class scored higher than Todd?
9. What percentage of the political science class scored lower than Todd?
10. What percentage of the economics class scores higher than Todd?
11. Which class is Todd doing best in? State how you determined your answer.
12. Which class is Todd doing worst in? State how you determined your answer.
Scenario 2 – answer questions 13 – 24 based on this scenario
Maggie attends Happy Days preschool. The preschool assessed the children’s motor skills (i.e. the ability to tie their shoes), social skills (i.e. sharing and saying please) and school readiness (i.e. knowledge of ABC’s & basic counting ability). The motor skills test has a class mean of 9.50 with a standard deviation of 1.25. The social skills test has a class mean of 10.25 with a standard deviation of 1.10. The school readiness test has a class mean of 11.43 with a standard deviation of 1.30. For each test higher score means better performance of that skill. Maggie’s parents are given a report card that indicate Maggie’s Z scores on each test which are motor skills = -0.72, social skills = 1.21 & school readiness = 0.00.
13. Which skill is strongest for Maggie? State how you determined your answer.
14. Which skill is weakest for Maggie? State how you determined your answer.
15. What is Maggie’s raw scores for motor skills?
16. What is Maggie’s raw score for social skills?
17. What is Maggie’s raw score for school readiness?
18. What percentage of her class scored higher than Maggie on the social skills test?
19. What percentage of her class scored lower than Maggie on the motor skills test?
20. What percentage of her class scored higher than Maggie on the school readiness test?
21. For which skill was the class average highest?
22. For which skill was the class average lowest?
23. For which skill was the class variability highest?
24. For which skill was the class variability lowest?
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