A researcher performed a study to test whether the distribution of political party affiliation is different for differen

[answerhappygod]

A researcher performed a study to test whether the distribution
of political party affiliation is different for different income
brackets. For each of the income brackets listed, she collected a
random sample. She observed the following sample data.
What is the expected number of people supporting Party A in the
Middle Income Bracket?
Does the data provide sufficient evidence to conclude that the
distribution of political party affiliation is different for
different income brackets? Suppose the test statistic is 27.831.
Answer the question using a significance level of 1%.