Is there enough evidence to suggest that the distribution among registered voters has changed since the previous study? Use a 0.05 level of significance.

Is there enough evidence to suggest that the distribution among registered voters has changed since the previous study? Use a 0.05 level of significance.

(Hypothetical) From a
previous study, the registered voters in a particular district were 48%
Republican, 41% Democrat and 11% independent. Prior to the most recent
election, a random sample of 150 voters showed 64 Republicans, 58 Democrats,
and 28 independents. Is there enough evidence to suggest that the distribution
among registered voters has changed since the previous study? Use a 0.05 level
of significance.

a. Hypotheses

b. Expected counts

c. Test statistic

d.p-value

e. Conclusion


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