Top Posters
Since Sunday
37
28
10
10
10
10
9
8
6
s
4
a
3
2
New Topic  
ahsdkajdao ahsdkajdao
wrote...
Posts: 95
Rep: 0 0
3 weeks 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 8 times
1 Reply
Replies
Answer verified by a subject expert
TarasiSusTarasiSus
wrote...
Posts: 81
Rep: 0 0
3 weeks 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

wrote...
Posts: 95
Credits: 40

3 weeks ago
This calls for a celebration Person Raising Both Hands in Celebration
wrote...
Posts: 124
Credits: 180

Yesterday
This site is awesome
Mcb
wrote...
Posts: 72
Credits: 40

2 hours ago
You make an excellent tutor!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  53 People Browsing
 374 Signed Up Today
Your Opinion
Who's your favorite biologist?
Votes: 139

Related Images
 8929
 3224
 69