Homework Help is Here – Start Your Trial Now!
Math
Statistics
Suppose it is know that the standard deviation of the amount customers spend is $8.8 Also suppose David and Susan both want to test the claim the average amount of money customers spend is more than $200 using a sample size of 400, they both get samples independently  In David's sample the mean is 206 In Sue's sample the mean is 215 Calculate the standard error and find the test stat for both David and Sue and answer the questions below Some ideas not in this course but discussed on youtube David's probability value  is  P(Z more than 13.636363636364) Sue's probability value is P(Z more than  34.090909090909) a. The standard error is 0.440 b. David's test stat is 13.636 c. Sue's test stat is 34.09 d. Sue has more evidence that the mean is more than 200 so Sue's p-value will be lower than David's e. Sue has more evidence that the mean is more than 200 so Sues p-value will be higher  than David's

Suppose it is know that the standard deviation of the amount customers spend is $8.8 Also suppose David and Susan both want to test the claim the average amount of money customers spend is more than $200 using a sample size of 400, they both get samples independently  In David's sample the mean is 206 In Sue's sample the mean is 215 Calculate the standard error and find the test stat for both David and Sue and answer the questions below Some ideas not in this course but discussed on youtube David's probability value  is  P(Z more than 13.636363636364) Sue's probability value is P(Z more than  34.090909090909) a. The standard error is 0.440 b. David's test stat is 13.636 c. Sue's test stat is 34.09 d. Sue has more evidence that the mean is more than 200 so Sue's p-value will be lower than David's e. Sue has more evidence that the mean is more than 200 so Sues p-value will be higher  than David's

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

Suppose it is know that the standard deviation of the amount customers spend is $8.8

Also suppose David and Susan both want to test the claim the average amount of money customers spend is more than $200 using a sample size of 400, they both get samples independently 

In David's sample the mean is 206

In Sue's sample the mean is 215

Calculate the standard error and find the test stat for both David and Sue and answer the questions below

Some ideas not in this course but discussed on youtube

David's probability value  is  P(Z more than 13.636363636364)

Sue's probability value is P(Z more than  34.090909090909)

a.
The standard error is 0.440
b.
David's test stat is 13.636
c.
Sue's test stat is 34.09
d.
Sue has more evidence that the mean is more than 200 so Sue's p-value will be lower than David's
e.
Sue has more evidence that the mean is more than 200 so Sues p-value will be higher  than David's
 
Expert Solution
Step 1

Statistics homework question answer, step 1, image 1

steps

Step by step

Solved in 5 steps with 5 images

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