I just need help on the 2 with the red x next to them. Thank you! in 2011 e indu
ID: 3057476 • Letter: I
Question
I just need help on the 2 with the red x next to them. Thank you!
in 2011 e industries w h he most complaints to the eetter Business ureau were banks, cable nd satellite television companies collection agencies, cellar phone providers, and new car dealerships USA 0day, April 16, 2012 complaints are contained in the DATAfile named B0. Click on the datafile logo to reference the data DATA a. Construct a frequency distribution tor the number ot complaints by industry. The results r a sam e o 200 Category Bank Cable 26 14 42 60 28 Cell Total b. Using -.01, conduct a hypothesis test to determine if the probability of a complaint is the same for the five industries. The test statistic is- 19 ·to 2 decimals). p-value0(to 4 decimals) What is Your condusion Regert the nullhypoth-ls snd ennelude that th-probability of complint c.Which industry has the most conplaints? not ans Dropping the industry with the most complaints using 05, conduct a hypothesis test to determine if the probability of a complaint is the same for the remaining four ndust es * (to 2 decimals). The test-statistic is 100.77 p-value= .0001 ehat is your condusion? to 4 decimals) Do "utruju.1 Uh1U "ul hypulhuat and conclude that thu probability ufuumpluint is amu.Explanation / Answer
applying goodness of fit by dropping cell frm above:
test statistic =16.29
p value =0.001
observed Expected Chi square x Probability(p) Oi Ei=total*p R2i=(Oi-Ei)2/Ei bank 1/5 26.000 28.0 0.14 cable 1/5 44.000 28.0 9.14 car 1/5 42.000 28.0 7.00 collection 1/5 28.000 28.0 0.00 total 0.8 140 112 16.286