An NBC/Wall Street Journal poll asked adults monthly, "In general, do you approve or disapprove of the job Barack Obama is doing as president?" $An NBC/Wall Street Journal poll asked adults monthly, In general, do you approve or disapprove of the job Barack Obama is doing as president? Suppose that the sample size in 2009, 2010, and 2011 was 2,000 adults.Use these results to test whether Presidential job approval ratings in these three years were independent of the survey date.Construct the hypotheses as follows: H0: The approval rating (response) is independent of the survey date Ha: The approval rating (response) is not independent of the survey date At a 5% significance level, what is the critical value, \chi 2c, for the hypothesis test? A)0.711 B)9.488 C)13.277 D)16.919$ Suppose that the sample size in 2009, 2010, and 2011 was 2,000 adults.Use these results to test whether Presidential job approval ratings in these three years were independent of the survey date.Construct the hypotheses as follows:
H₀: The approval rating (response) is independent of the survey date
H_a: The approval rating (response) is not independent of the survey date
At a 5% significance level, what is the critical value,

\chi

²_c, for the hypothesis test?
A)0.711
B)9.488
C)13.277
D)16.919

The Expected Frequency in a Goodness of Fit Test for a Multinomial

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