Question: Union membership as a percentage of the working population varies

Union membership, as a percentage of the working population, varies from country to country. A number of workers from different countries were randomly surveyed and asked whether they belonged to a union. The data from the survey are as follows:
a. Using α = 0.05, perform a chisquare test to determine if the proportion of workers who belong to unions differs among these four countries.
b. Determine the pvalue using Excel and interpret its meaning.
c. Confirm your results using pvalue.

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