A researcher is interested in determining if the model used for the distribution of main economic concerns in the year 2003 for residents in a certain county can still be used in the year 2004.A sample of 370 residents from that county was surveyed in 2004.The following table displays the model for the distribution of economic concerns for the year 2003 and the observed number of sampled respondents in the survey for the same economic concerns for the year 2004. At the 5% significance level,which of the following statements represents the conclusion of this chi-square test under the null hypothesis that the model from the previous year can still be used?
A)The test is inconclusive.
B)There has been a significant change from the previous year.
C)There has been no significant change from the previous year.

Question

A researcher is interested in determining if the model used for the distribution of main economic concerns in the year 2003 for residents in a certain county can still be used in the year 2004.A sample of 370 residents from that county was surveyed in 2004.The following table displays the model for the distribution of economic concerns for the year 2003 and the observed number of sampled respondents in the survey for the same economic concerns for the year 2004.  At the 5% significance level,which of the following statements represents the conclusion of this chi-square test under the null hypothesis that the model from the previous year can still be used?
A)The test is inconclusive. 
B)There has been a significant change from the previous year. 
C)There has been no significant change from the previous year.

Quizplus · Accepted Answer

The Answer of A researcher is interested in determining if the model used for the distribution of main economic concerns in the year 2003 for residents in a certain county can still be used in the year 2004.A sample of 370 residents from that county was surveyed in 2004.The following table displays the model for the distribution of economic concerns for the year 2003 and the observed number of sampled respondents in the survey for the same economic concerns for the year 2004.  At the 5% significance level,which of the following statements represents the conclusion of this chi-square test under the null hypothesis that the model from the previous year can still be used?
A)The test is inconclusive. 
B)There has been a significant change from the previous year. 
C)There has been no significant change from the previous year.

A Researcher Is Interested in Determining If the Model Used