| ormula Cho-13pchapter 12 Quiz My Blackboard Content-BI ezto.m px A local TV st

Question

| ormula Cho-13pchapter 12 Quiz My Blackboard Content-BI ezto.m px A local TV station claims that 68% of people support Candidate A 22% support Candidate B, and 10% support Candidate C. A survey of 546 registered voters is taken. The accompanying table indicates how they are likely to vote. 339 163 a. Choose the appropriate alternative hypothesis to test whether the TV station's claim can be rejected by the data O At least one of the population proportions differs from its hypothesized value. b-1. Calculate the value of the test statistic (Round intermediate calculations to at least 4 decimal Test statistic b-2. Approximate the p-value O p-value 0.005 O 0.010 s p-value

Explanation / Answer

a) Correct answre: Option(B) At least one the population proportin different form its hypothezed value

b-1) From the givne data, the expected frequencies and chisquare contribution values are calculated as follows

Test Statistic, X^2: 20.1715

b-2) P-Value: 0.0000

Correct answer: Option (A)

b-3) Correct answer: Option (D)

Observed Expected Freq (Oi) Prob Freq Ei (Oi-Ei)^2 /Ei 339 0.68 371.28 2.806502909 163 0.22 120.12 15.30714619 44 0.1 54.6 2.057875458 Total: 546 546 20.17152455

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