Top Posters
Since Sunday
18
18
Z
9
7
e
7
s
6
m
6
M
6
a
6
K
6
j
5
l
5
New Topic  
riirkirir riirkirir
wrote...
Posts: 99
Rep: 0 0
3 weeks ago
It is believed that the proportion of the U.S. population who speak a foreign language at home has changed over the years. Suppose the data below represent random samples that were taken in 1990, 2000, and 2010 by the Census Bureau, which recorded the number of individuals who spoke a foreign language at home.



Perform a chi-square test to determine if the proportion of the U.S. population who speak a foreign language at home has changed over the years using α = 0.05.
Textbook 

Business Statistics


Edition: 2nd
Author:
Read 4 times
1 Reply
Replies
Answer verified by a subject expert
LydiaaLydiaa
wrote...
Posts: 83
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
H0p1 = p2 = p3
H1: Not all ps are equal
 =  = 0.16



We have k - 1 = 3 - 1 = 2 degrees of freedom, our critical value is  =  = 5.991. Because χ2 = 9.065 is greater than  = 5.991, we reject the null hypothesis. We have evidence to conclude that the proportion of the U.S. population who speak a foreign language at home has changed between 1990 and 2010.

1

Related Topics

wrote...
Posts: 99
Credits: 30

3 weeks ago
This helped my grade so much Perfect
wrote...
Posts: 167
Credits: 125

Yesterday
Thank you, thank you, thank you!
wrote...
Posts: 81
Credits: 40

2 hours ago
Thanks
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  107 People Browsing
 273 Signed Up Today
Related Images
 169
 121
 113