Top Posters
Since Sunday
17
s
11
N
6
o
6
h
5
l
5
i
5
h
5
w
5
o
5
5
4
New Topic  
ahsdkajdao ahsdkajdao
wrote...
Posts: 101
Rep: 0 0
8 months ago
Toll Brothers is a luxury home builder that would like to test the hypothesis that the standard deviation for the size of new homes exceeds 500 square feet. The square footage for a random sample of 25 new homes was recorded. The standard deviation for this sample was found to be 610 square feet. Test this hypothesis using α = 0.10.
Textbook 

Business Statistics


Edition: 2nd
Author:
Read 33 times
1 Reply
Replies
Answer verified by a subject expert
TarasiSusTarasiSus
wrote...
Posts: 90
Rep: 0 0
8 months ago
Sign in or Sign up in seconds to unlock everything for free
More questions for this book are available here


Because χ2 = 35.72 is more than  = 33.196 for an upper-tail test, we reject the null hypothesis. We have enough evidence to conclude that the standard deviation for the size of new homes exceeds 500 square feet.

1

Related Topics

ahsdkajdao Author
wrote...

8 months ago
You make an excellent tutor!
wrote...

Yesterday
This calls for a celebration Person Raising Both Hands in Celebration
wrote...

2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  162 People Browsing
 431 Signed Up Today
Related Images
  
 209
  
 158
  
 90
Your Opinion
What's your favorite coffee beverage?
Votes: 227

Previous poll results: What's your favorite math subject?