KULOLIVII / JU PUPILSJ A house cleaning service has found that historically only 12.5% of its customers were not satisfied with the cleaning job. Recently, however, they have had a number of complaints from customers, so they decide to see if the percentage customers who were not satisfied has increased. They randomly select 175 customers and find that 28 of the 175 customers said they were not satisfied with the cleaning job. Using a 1% level of significance the correct decision is Reject Ho because Ztest -1.40 is less than 2.33 (or 2.326) Reject Ho because Ztest =1.40 does not equal 2.33 (or 2.326) Do not reject Ho because Ztest=1.40 is not greater than 2.33 (or 2.326) Do not reject Ho because Ztest =1.40 is not less than 2.33 (or 2.326) Do not reject Ho because Ztest =1.40 is between -2.575 and 2.575