Listed below are contributions (in dollars) made to two presidential candidates

Question

Listed below are contributions (in dollars) made to two presidential candidates in a recent election. Find the coefficient of variance for each data set. Is there a difference in variation between the two data sets? The coefficient of variation for the contributions to Candidate A is ___%. (Round to one decimal place as needed.) The coefficient of variation for the contributions to Candidate B is ___% (Round to one decimal place as needed.) Is there a difference in variation between the two data sets? Consider a difference of greater than 1% to be significant. The contributions to Candidate B have significantly less variation than the contributions to Candidate A. The contributions to Candidate A have significantly less variation than the contributions to Candidate B. There is no significant difference in the variations.

Explanation / Answer

forA =46.4%

for B=59.9%

option B is correct

A B 169 1174 1817 1491 1027 1348 546 869 1093 175 500 471 1750 629 1000 145 1500 811 1935 1349 1193 324 1326 1383 1712 277 721 560 1970 734 mean 1217.267 782.667 std deviation 565.143 468.929 coeff of variation=(std deviation/mean)*100 46.4 59.9

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