Change each rat’s score to its z-score equivalent On which diet did the rat score in the highest position? On which diet did the rats score in the lowest position?
Change each rat’s score to its z-score equivalent On which diet did the rat score in the highest position? On which diet did the rats score in the lowest position?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
Related questions
Question
- A psychologist would like to examine the effects of diet on intelligence. Two groups of rats are selected, with 12 rats in each group. One group is fed the regular diet of RAT CHOW, whereas the second group has their diet enhanced by the addition of special vitamins. After 6 months, each rat is tested on a discrimination task. The psychologist records the number of errors made by each rat before it solves the problem. The data from this experiment is as follows:
Diet
µ
σ
Score
Regular diet
11.58
1.9
12
Special
8.25
1.35
15
- Change each rat’s score to its z-score equivalent
- On which diet did the rat score in the highest position?
- On which diet did the rats score in the lowest position?
- What is the percentile rank of the rat’s error on a special?
- What percentage of the rats who had the regular diet scored higher than the score?
- Between what two scores on special diet did the middle 95% of rats lie?
- What percent of rats had scores between X = 9 and X = 17 on regular?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt