A polling organization conducted surveys of randomly selected citizens 18 years
ID: 3264862 • Letter: A
Question
A polling organization conducted surveys of randomly selected citizens 18 years old or older and asked whether they support the legalization of medicinal marijuana. The frequencies of reported opinions, by age group are presented in the table 18 to 29 145 149 30 to 49 108 139 50 or older 83 148 For Against 0.05 (a) Test whether the proportion of citizens within each age group who are for or against the legalization of medicinal marijuana are the same at State the hypotheses. Choose the correct answer belovw A. Ho: Ol = E, and O2-E2 and 03-E3 O B. Ho: Opinion and age are independent. ° C. Ho: p1 = p2-p3 01 E1 and O2 E2 and O3 -E H1: Opinion and age are dependent. H4: At least one of the proportions is different from the others Compute the P-value (Round to three decimal places as needed.)Explanation / Answer
The statistical software output for this problem is:
Contingency table results:
Rows: _
Columns: None
Chi-Square test:
Hence,
a) Hypotheses: Option C is correct.
p - Value = 0.009
Conclusion: Option B is correct.
b) Conditional distribution:
Bar graph: Option A is correct.
Cell format Count(Column percent)