Historically, the industries with the most complaints to the Better Business Bureau have been banks, cable and satellite television companies, collection agencies, cellular phone providers, and new car dealerships. The results for a sample of 200 complaints are contained in the file BBB. Click on the datafile logo to reference the data. 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 a = 0.01, conduct a hypothesis tet to determine whether the probability of a complaint is the same for the five industries The test-statistic is 19.000 (to 3 decimals), p-value = .0008 (to 4 decimals) What is your conclusion? Reject the null hypothesis and conclude that the probability of complaint is not same. C. Which industry has the most complaints? Cell Dropping the industry with the most complaints using a = 0.05, conduct a hypothesis test to determine whether the Colecuon 200 Total b. Using a = 0.01, conduct a hypothesis test to determine whether the probability of a complaint is the same for the five industries. The test statistic is 19.000 (to 3 decimals). p-value = .0008 (to 4 decimals) What is your conclusion? Reject the null hypothesis and conclude that the probability of complaint is not same. C. Which industry has the most complaints? Cell Dropping the industry with the most complaints using a = 0.05, conduct a hypothesis test to determine whether the probability of a complaint is the same for the remaining four industries. The test-statistic is (to 3 decimals). p-value = .0100 (to 4 decimals) What is your conclusion? Do not reject the null hypothesis and conclude that the probability of complaint is same. Hide Feedback Partially Correct Hint(s) Check My Work (3 remaining)