Homework Help is Here – Start Your Trial Now!
Math
Statistics
(d) Use StatKey or other technology to find the standard error for the estimate. Round your answer to three decimal places. Standard error = i

(d) Use StatKey or other technology to find the standard error for the estimate. Round your answer to three decimal places. Standard error = i

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

Need help with (d) and (e)

Synchronized Dancing, Anyone? This exercise uses data from a study designed to examine the effect of doing synchronized movements (such as marching in step or doing synchronized dance steps) and the effect of exertion on many different variables, such as pain tolerance and attitudes towards others. In the study, 264 high school students in Brazil were randomly assigned to one of four groups reflecting whether or not movements were synchronized (Synch = yes or no) and level of activity (Exertion = high or low).¹ Participants rated how close they felt to others in their group both before (CloseBefore) and after (CloseAfter) the activity, using a 7-point scale (1 = least close to 7 = most close). Participants also had their pain tolerance measured using pressure from a blood pressure cuff, by indicating when the pressure became too uncomfortable (up to a maximum pressure of 300 mmHg). Higher numbers for this Pain Tolerance measure indicate higher pain tolerance. The full dataset is available in SynchronizedMovement. What Proportion Go to Maximum Pressure? We see that 75 of the 264 people in the study allowed the pressure to reach its maximum level of 300 mmHg, without ever saying that the pain was too much (MaxPressure = yes). Use this information to estimate the proportion of people who would allow the pressure to reach its maximum level. Click here for the dataset associated with this question. Click here to access StatKey. 1Tarr B, Launay J, Cohen E, and Dunbar R, "Synchrony and exertion during dance independently raise pain threshold and encourage social bonding," Biology Letters, 11(10), October 2015.
Transcribed Image Text:Synchronized Dancing, Anyone? This exercise uses data from a study designed to examine the effect of doing synchronized movements (such as marching in step or doing synchronized dance steps) and the effect of exertion on many different variables, such as pain tolerance and attitudes towards others. In the study, 264 high school students in Brazil were randomly assigned to one of four groups reflecting whether or not movements were synchronized (Synch = yes or no) and level of activity (Exertion = high or low).¹ Participants rated how close they felt to others in their group both before (CloseBefore) and after (CloseAfter) the activity, using a 7-point scale (1 = least close to 7 = most close). Participants also had their pain tolerance measured using pressure from a blood pressure cuff, by indicating when the pressure became too uncomfortable (up to a maximum pressure of 300 mmHg). Higher numbers for this Pain Tolerance measure indicate higher pain tolerance. The full dataset is available in SynchronizedMovement. What Proportion Go to Maximum Pressure? We see that 75 of the 264 people in the study allowed the pressure to reach its maximum level of 300 mmHg, without ever saying that the pain was too much (MaxPressure = yes). Use this information to estimate the proportion of people who would allow the pressure to reach its maximum level. Click here for the dataset associated with this question. Click here to access StatKey. 1Tarr B, Launay J, Cohen E, and Dunbar R, "Synchrony and exertion during dance independently raise pain threshold and encourage social bonding," Biology Letters, 11(10), October 2015.
* Your answer is incorrect. (d) Use StatKey or other technology to find the standard error for the estimate. Round your answer to three decimal places. Standard error = i * Your answer is incorrect. (e) Use the standard error to give a 95% confidence interval for the quantity we are estimating. Round your answers three decimal places. The interval is i to i
Transcribed Image Text:* Your answer is incorrect. (d) Use StatKey or other technology to find the standard error for the estimate. Round your answer to three decimal places. Standard error = i * Your answer is incorrect. (e) Use the standard error to give a 95% confidence interval for the quantity we are estimating. Round your answers three decimal places. The interval is i to i
Expert Solution
Step 1

From the given data we have,

Let the total number of females in a simple be n1=165

Let the number of females allowed the pressure ti reach its maximum level of 300 mmHg be x1=33

The sample proportion of females allowed the pressure to reach its maximum level of 300 mmHg is p1^=x1n1=33165=0.20

 

Let the total number of males in a sample be n2=99

Let the number of males  allowed the pressure to reach  its maximum level of 300mmHg be x2=42

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
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