Past experience has indicated that the true response rate is 40% when individuals are approached with a request to fill out a questionnaire and return it in a stamped and addressed envelope. to investigate this theory, a distributor is fitted with an eye patch. of the 200 questionnaires distributed by this individual, 100 were returned. does this provide convincing evidence that the response rate in this situation more than the rate in the past? state and test the appropriate hypotheses at significance level 0.05.