Homework Help is Here – Start Your Trial Now!
Math
Statistics
At Rachel's 11th birthday party, 8 girls were timed to see how long (in seconds) they could hold their breath in a relaxed position. After a two-minute rest, they timed themselves while jumping. The girls thought that the mean difference between their jumping and relaxed times would be zero. Test their hypothesis at the 5% level. Part (a) 29 NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) State the null hypothesis. Ho: Md 20 Ho: Md ≤0 Ho: Md=0 Ho: Md #0 Part (b) Relaxed time (seconds) 29 48 28 22 23 45 37 State the alternative hypothesis. Ha: Md > 0 Ha: Md <0 Ha: Md = 0 O Ha: Md #0 Part (c) Jumping time (seconds) 20 43 29 21 25 43 35 32 In words, state what your random variable Xd represents. Xd represents the average difference in the length of time each girl can hold her breath. O X represents the difference in time for each girl to hold her breath while relaxed and while jumping. O X represents the difference in the average amount of time a girl can hold her breath while relaxed and while jumping. O X represents the amount of time each girl can hold her breath.

At Rachel's 11th birthday party, 8 girls were timed to see how long (in seconds) they could hold their breath in a relaxed position. After a two-minute rest, they timed themselves while jumping. The girls thought that the mean difference between their jumping and relaxed times would be zero. Test their hypothesis at the 5% level. Part (a) 29 NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) State the null hypothesis. Ho: Md 20 Ho: Md ≤0 Ho: Md=0 Ho: Md #0 Part (b) Relaxed time (seconds) 29 48 28 22 23 45 37 State the alternative hypothesis. Ha: Md > 0 Ha: Md <0 Ha: Md = 0 O Ha: Md #0 Part (c) Jumping time (seconds) 20 43 29 21 25 43 35 32 In words, state what your random variable Xd represents. Xd represents the average difference in the length of time each girl can hold her breath. O X represents the difference in time for each girl to hold her breath while relaxed and while jumping. O X represents the difference in the average amount of time a girl can hold her breath while relaxed and while jumping. O X represents the amount of time each girl can hold her breath.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
At Rachel's 11th birthday party, 8 girls were timed to see how long (in seconds) they could hold their breath in a relaxed position. After a two-minute rest, they timed themselves while jumping. The girls thought that the mean difference between their jumping and relaxed times would be zero. Test their hypothesis at the 5% level. Relaxed time (seconds) 29 48 28 22 23 45 37 29 NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlyin population is normally distributed. (In general, you must first prove that assumption, though.) Part (a) State the null hypothesis. O Ho: Md ²0 O Ho: Md ≤0 Ho: Md = 0 O Ho: Md #0 Part (b) State the alternative hypothesis. ⒸH₂: Md > 0 O Ha: Md <0 ○ Ha: Md = 0 O Ha: Md #0 Part (c) Jumping time (seconds) 20 43 29 21 25 43 35 32 In words, state what your random variable X represents. O X represents the average difference in the length of time each girl can hold her breath. O X represents the difference in time for each girl to hold her breath while relaxed and while jumping. O X represents the difference in the average amount of time a girl can hold her breath while relaxed and while jumping. O X represents the amount of time each girl can hold her breath.
Transcribed Image Text:At Rachel's 11th birthday party, 8 girls were timed to see how long (in seconds) they could hold their breath in a relaxed position. After a two-minute rest, they timed themselves while jumping. The girls thought that the mean difference between their jumping and relaxed times would be zero. Test their hypothesis at the 5% level. Relaxed time (seconds) 29 48 28 22 23 45 37 29 NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlyin population is normally distributed. (In general, you must first prove that assumption, though.) Part (a) State the null hypothesis. O Ho: Md ²0 O Ho: Md ≤0 Ho: Md = 0 O Ho: Md #0 Part (b) State the alternative hypothesis. ⒸH₂: Md > 0 O Ha: Md <0 ○ Ha: Md = 0 O Ha: Md #0 Part (c) Jumping time (seconds) 20 43 29 21 25 43 35 32 In words, state what your random variable X represents. O X represents the average difference in the length of time each girl can hold her breath. O X represents the difference in time for each girl to hold her breath while relaxed and while jumping. O X represents the difference in the average amount of time a girl can hold her breath while relaxed and while jumping. O X represents the amount of time each girl can hold her breath.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS