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In 2011, the industries with the most complaints to the Better Business Bureau were banks, cable and satellite television companies, collection agencies, cellular phone car
In 2011, the industries with the most complaints to the Better Business Bureau were banks, cable and satellite television companies, collection agencies, cellular phone car dealerships (USA Today, April 16, 2012). The results for a sample of 200 complaints are contained in the DATAfile named BBB. Click on the datafile logo to reference DATA file a. Construct a frequency distribution for the number of complaints by industry. Observed Category Frequency Bank 26 Cable 44 Car 42 Cell 60 Collection 28 Total 200 b. Using o = .01, conduct a hypothesis test to determine if the probability of a complaint is the same for the five industries. The test-statistic is (to 2 decimals)
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