Homework Help is Here – Start Your Trial Now!
Math
Advanced Math
Psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Hours without sleep 32 38 48 24 46 35 30 3442 Number of Mistakes 6 8 135 7 6 5 8 12 Hours without sleep x, Number of mistakes"y (a) Find the correlation coefficient. (Round your answer to nearest hundredth. eg. 2.345 would be entered as 2.35) (b) Find the critical value.

Psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Hours without sleep 32 38 48 24 46 35 30 3442 Number of Mistakes 6 8 135 7 6 5 8 12 Hours without sleep x, Number of mistakes"y (a) Find the correlation coefficient. (Round your answer to nearest hundredth. eg. 2.345 would be entered as 2.35) (b) Find the critical value.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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 15PPS
See similar textbooks
icon
Related questions
Topic Video
Question

Psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded.

Psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Hours without sleep 32 38 48 24 46 35 30|3442 Number of Mistakes 6 8 135 7 6 5 8 12 Hours without sleep x, Number of mistakes=y (a) Find the correlation coefficient. (Round your answer to nearest hundredth. e.g. 2.345 would be entered as 2.35) (b) Find the critical value. (c) By using the critical value test, is there a linear relation exist between hours without sleep and number of mistakes? (Enter yes or no, e.g. if you answer is "yes", enter as yes) (d) Find the slope of the least square regression line. (Round the slope to nearest thousandth. e.g. 2.3457 would be entered as 2.346) (e) Find the y-intercept of least square regression line. (Round the y-intercept to nearest thousandth. e.g. 2.3457 would be entered as 2.346) (e) Is the interpretation of the y-intercept appropriate? (Enter yes or no, e.g. if you answer is "yes", enter as yes)
Transcribed Image Text:Psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Hours without sleep 32 38 48 24 46 35 30|3442 Number of Mistakes 6 8 135 7 6 5 8 12 Hours without sleep x, Number of mistakes=y (a) Find the correlation coefficient. (Round your answer to nearest hundredth. e.g. 2.345 would be entered as 2.35) (b) Find the critical value. (c) By using the critical value test, is there a linear relation exist between hours without sleep and number of mistakes? (Enter yes or no, e.g. if you answer is "yes", enter as yes) (d) Find the slope of the least square regression line. (Round the slope to nearest thousandth. e.g. 2.3457 would be entered as 2.346) (e) Find the y-intercept of least square regression line. (Round the y-intercept to nearest thousandth. e.g. 2.3457 would be entered as 2.346) (e) Is the interpretation of the y-intercept appropriate? (Enter yes or no, e.g. if you answer is "yes", enter as yes)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Propositional Calculus
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
SEE MORE TEXTBOOKS