79. Online insurance. After seeing countless commercials claiming one can get cheaper car insurance from an online company, a local insurance agent was concerned that he might lose some customers. To investigate, he randomly selected profiles (type of car, coverage, driving record, etc.)

for 10 of his clients and checked online price quotes for their policies. The comparisons are shown in the table. His statistical software produced the following summaries

(where PriceDiff = Local - Online):

Transcribed Image Text:

Variable Count Mean StdDev Local 10 799.200 229.281 Online 10 753.300 256.267 Price Diff PriceDiff 10 45.9000 175.663 Local Online PriceDiff 568 391 177 872 602 270 451 488 -37 1229 903 326 605 677 -72 1021 1270 -249 783 703 80 844 789 55 907 1008 -101 712 702 10