Question
Where do you live? The U.S. Census Bureau computed the proportion of U.S. residents who lived in each of four geographic regions in Year A
Where do you live?The U.S. Census Bureau computed the proportion of U.S. residents who lived in each of four geographic regions in Year
A
.Then a simple random sample was drawn of
1000
people living in the United States in Year
B
.The following table presents the results:
Category | Year A Proportion | Year B Frequency |
---|---|---|
Northeast | 0.194 | 149 |
Midwest | 0.210 | 210 |
South | 0.374 | 400 |
West | 0.222 | 241 |
Send data to Excel
Can you conclude that the proportions of people living in the various regions changed between Year
A
and Year
B
?
Use the
=0.01
level of significance.
Part:0 / 2
0 of 2 Parts Complete
Part 1 of 2
(a)Find the
P
-value. Use Excel; round your answer to four decimal places.
The P -value is 2 . |
Part:1 / 2
1 of 2 Parts Complete
Part 2 of 2
(b)Write a conclusion.
We do not reject H0 . There is enough evidence at the =0.01 level of significance to say that the proportions of people living in the various regions changed between Year A and Year B . |
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