A survey asked Democrats, Republicans, and Independent voters what the most impo

Question

A survey asked Democrats, Republicans, and Independent voters what the most important message is to send to Congress. The most popular response for all three groups was to "focus on the economy" The number of respondents, the messages they want sent, and their party affliations are shown in the accompanying table. Complete parts a through c below ? Click the icon to view the political message data. C. Ho Not all p's are equal H Not all p's are equal What is the test statistic? X(Round to two decimal places as needed.)

Explanation / Answer

Here our null hypothesis is,

H0 : PD=PR=PI

Now R-code to calculate the value of chi-square statistic as;

x=c(56,95)
y=c(56,114)
z=c(65,55)
d=data.frame(x,y,z);d
chisq.test(d)

And the output is ;

>chisq.test(d)

Pearson's Chi-squared test

data: d
X-squared = 14.079, df = 2, p-value = 0.0008765

Here the value of chi-square statistic is 14.079.

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