ACTIVITY SHEET 1. Title: Drawing Conclusions About Population Proportion Based on Test Statistic Value and Rejection Region II. Objectives: a. compute for the test statistic of population proportion; and b. draw conclusions on population proportions based on the test statistic and the rejection region Procedure: Compute the test statistic. Select the proper statement if Zcom falls or do not fall in the rejection region. Fill in the blank with the word REJECT if the decision is to reject the null hypothesis. Otherwise, write FAIL TO REJECT. Then, draw your own conclusions by completing the statement. (5pts on each item) 1. In a public senior high school, a survey conducted last year by a Health Officer showed that 12% of the students drink alcohol. This year, a new survey was conducted randomly on 600 students from the same school. It was found that 103 of them drink alcohol. Test if the claim was higher at a = 0.01 level. a. Ho : p = 0.12 Ha : p > 0.12 b. Level of Significance: a = 0.01 c. Computed Test Statistic: zcom = d. Critical Value: 2.326 e. DECISION: Since the computed test statistic zcom = _(falls/do not fall) in the rejection region, the null hypothesis (Ho). CONCLUSION: Therefore, we conclude that at 0.01 level of significance, evidence to claim that 2. Given: Ho: The proportion of employees in a shoe factory who smoke cigarette is 30%. (Ho : p = .30) Ha : The proportion of employees in a shoe factory who smoke cigarette has increased to 30%. (Ho : p > .30) a = 0.01 Computed z-statistic: zcom = 2.26 and Critical z- value: z tab = DECISION: Since the computed test statistic zcom = 2.26 (falls/do not fall) in the rejection region, the null hypothesis (Ho). CONCLUSION: Therefore, we conclude that at 0.01 level of significance, evidence to conclude that