In: Statistics and Probability
You also have been asked to study whether there are any
differences in the proportions of...
- You also have been asked to study whether there are any
differences in the proportions of various income levels of
supporters concerning whether they are willing to financially
contribute to the candidate’s campaign. Random samples of
supporters categorized by income level are chosen. Sample data
concerning income level and whether a financial contribution has
been or will be made is shown below in appendix two. At each of the
2% and 5% levels of significance, are there any differences in the
proportions of the various income levels concerning their financial
support of the candidate? If at either level of significance, you
find any differences in the proportions of income levels that have
or will donate to the campaign, perform the necessary work in order
to ascertain where any possible differences lie.
Income Level
Donate Financially?
<20K [20K,40K) [40K,60K) [60K,80K)
≥80K
Yes
14
27
23
29
28
No
50
35
28
19
17