80.2K

Verified Solution

Link Copied!

1. You also have been asked to study whether there are anydifferences in the proportions of various income levels ofsupporters concerning whether they are willing to financiallycontribute to the candidate’s campaign. Random samples ofsupporters categorized by income level are chosen. Sample dataconcerning income level and whether a financial contribution hasbeen or will be made is shown below in appendix two. At each of the2% and 5% levels of significance, are there any differences in theproportions of the various income levels concerning their financialsupport of the candidate? If at either level of significance, youfind any differences in the proportions of income levels that haveor will donate to the campaign, perform the necessary work in orderto 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