21. Use this information for this question and the next question. The Access and Support to Education and Training Survey (2008) found that 67 percent of adult Canadians strongly agree with the statement \"Learning new things is fun\". A researcher believes that the percentage of adult Canadians who strongly agree with that statement is more than 67 percent. He collects a sample of 1000 adult Canadians, of which 750 strongly agreed with the statement \"Learning new things is fun\". What should the researcher define as the notations for stating the null and alternative hypotheses in the context of this study? (a) Ho: 1: = 67 Ham: > 67 (b) H0: 1! = 0.67 Ha: It > 0.67 (c)Ho:1r > 67 Ha: 11' = 67 (d)Ho:1r = 0.75 Ha: It > 0.75 (e) HO: 1: = 75, Ha: It > 75 22. Refer to the information in question 21. What is the value of the observed test statistic? (a) 5.38 (b) 361.83 (c) -5.38 (d) 426.67 (e) 5.84