1.)The school registrar estimates that thedropout rate of freshmen high schools in Valenzuela is 200. Last year, 90 freshmen from a random sample of 500 Valenzuela freshmen high school withdrew. At 0.01, is there enough evidence to reject the registrar's claim? Solution: &tep 1: State the hypotheses. H H Step 2: The level of significance and critical region. a = and Zeritical= step 3: Compute for the value of one sample z test.Zcomputed= Step 4: Decision rule. and Zeritical Zcomputed &tep 5: Conclusion. 2.)Achaiah made a claim that at least 5% of the college male students drives racing car, His friend Sofia finds this hard to believe and decided to check the validity of Achaiah's claim e she took a random sample. At 0.05, does Sofia have sufficient evidence to reject Achaiah's claim if there were 57 racing car in her sample of 750 cars? Solution: Step l: State the hypotheses Ho: H Btep 2: The level of significance and critical region. a = and Zeritical = Gtep 3: Compute for the value of one samplez test. ZComputed Btep 4: Decision rule Btep 5: Conclusion