A politician has commissioned a survey of blue-collar and white-collar employees in her electorate. The survey reveals that 286 out of 542 blue-collar workers intend to vote for her in the next election, whereas 428 out of 955 white-collar workers intend to vote for her.
a. Can she infer at the 5% level of significance that the level of support differs between the two groups of workers?
b. What is the p-value of the test? Explain how to use it to test the hypotheses.

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The Answer of A politician has commissioned a survey of blue-collar and white-collar employees in her electorate. The survey reveals that 286 out of 542 blue-collar workers intend to vote for her in the next election, whereas 428 out of 955 white-collar workers intend to vote for her.
a. Can she infer at the 5% level of significance that the level of support differs between the two groups of workers?
b. What is the p-value of the test? Explain how to use it to test the hypotheses.

A Politician Has Commissioned a Survey of Blue-Collar and White-Collar