FIND P VALUE, X^2, DF ( DEGREE FREEDOM )

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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FIND P VALUE, X^2, DF ( DEGREE FREEDOM ) 

A government agency computed the proportion of U.S. residents who lived in each of four geographic regions in a particular year. Then a simple
random sample was drawn of 1000 people living in the United States in the current year. The following table presents the results.
Region
Northeast
Midwest
South
West
Past Year Observed
Counts
155
232
395
218
Proportion
0.194
0.236
0.351
0.219
Send data to Excel
Part 1 of 4
Can you conclude that the proportions of people living in the various regions changed between the current year and the past year? Use the 0.10
level of significance and the P-value method with the TI-84 Plus calculator.
(a) State the null and alternate hypotheses.
Ho: The proportions of U.S. residents who lived in each geographic region in the past year are
current year.
H₁:
: The proportions of U.S. residents who lived in each geographic region in the past year are not
current year.
the same as those in the
the same as those in the
Transcribed Image Text:A government agency computed the proportion of U.S. residents who lived in each of four geographic regions in a particular year. Then a simple random sample was drawn of 1000 people living in the United States in the current year. The following table presents the results. Region Northeast Midwest South West Past Year Observed Counts 155 232 395 218 Proportion 0.194 0.236 0.351 0.219 Send data to Excel Part 1 of 4 Can you conclude that the proportions of people living in the various regions changed between the current year and the past year? Use the 0.10 level of significance and the P-value method with the TI-84 Plus calculator. (a) State the null and alternate hypotheses. Ho: The proportions of U.S. residents who lived in each geographic region in the past year are current year. H₁: : The proportions of U.S. residents who lived in each geographic region in the past year are not current year. the same as those in the the same as those in the
Part 1 of 4
(a) State the null and alternate hypotheses.
Ho: The proportions of U.S. residents who lived in each geographic region in the past year are
current year.
H₁: The proportions of U.S. residents who lived in each geographic region in the past year are not
current year.
Part: 1 / 4
Part 2 of 4
(b) Find the P-value. Round the answer to at least four decimal places.
The P-value is
X
Ś
the same as those in the
the same as those in the
Transcribed Image Text:Part 1 of 4 (a) State the null and alternate hypotheses. Ho: The proportions of U.S. residents who lived in each geographic region in the past year are current year. H₁: The proportions of U.S. residents who lived in each geographic region in the past year are not current year. Part: 1 / 4 Part 2 of 4 (b) Find the P-value. Round the answer to at least four decimal places. The P-value is X Ś the same as those in the the same as those in the
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