A Researcher Is Interested in Determining If the Model Used

Multiple Choice

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. Let p₁,p₂,p₃,and p₄ be the proportion of all residents in this county who would list each of the economic concerns as priority for the year 2004.What would be the null hypothesis for a chi-square test for testing if the model from the previous year can still be used?

A) H₀: p₁ = p₂ = p₃ = p₄ = 0.25
B) H₀: p₁ = 25;p₂ = 138;p₃ =116;p₄ = 91
C) H₀: p₁ = 0.05;p₂ = 0.36;p₃ = 0.27;p₄ = 0.32
D) This cannot be determined from the information given.