I. Choose the correct answer

1. It is a value that divides the sampling distribution of a test statistic into critical and acceptance region. A. Acceptance Region C. Level of Significance B. Critical Value D. Rejection Region 2. What set of values for the test statistic could range from negative infinity to positive infinity and which the null hypothesis is rejected? A. Acceptance Region C. Level of Significance B. Critical Value D. Rejection Region 3. In the two-tailed test, the rejection region lies on of the normal distribution. A. center B. left tail C. right tail D. both tails 4. Which of the following pairs is INCORRECT? A. Left tailed or directional : The rejection region is at the right side of the acceptance region. C. Left tailed or directional > > : The rejection region is at the left side of the acceptance region. D. Two-tailed test or non-directional test # : The critical region is at the left and right sides of the acceptance region. 5. Which of the following is the sketch of the normal curve if z21.645? A. B. D. 6. Which of the following graphs of rejection region show (22.074? A. B. D. For items 7-10, please refer to the problem below. A pediatrician claimed that the average time for a drug to take effect is 15 minutes with a standard deviation of 8 minutes. In a sample of 49 trials, the average time was 18 minutes. Test the claim of the pediatrician that the average time is not equal to 15 minutes. Assume that the average time for a drug take effect is approximately normally distributed. Test the hypothesis at 0.01 level of significance. A pediatrician claimed that the average time for a drug to take effect is 15 minutes with a standard deviation of 8 minutes. In a sample of 49 trials, the average time was 18 minutes. Test the claim of the pediatrician that the average time is not equal to 15 minutes. Assume that the average time for a drug take effect is approximately normally distributed. Test the hypothesis at 0.01 level of significance.7. Which of the following is a statement that describes the null hypothesis? A. Ho : H = 15 C. Ho : 1 > 15 B. Ho : 1 15 D. Ho : p 2 15 8. Which of the following statements describes the alternative hypothesis? A. Ha : p = 15 C. H. : p > 15 B. Ho : p 15 D. H. : p 2 15 9. What is the level of significance? A. 0.01 B. 0.05 C. 0.10 D. 0.15 10. What is the z- value? A. 2.60 B. 2.61 C. 2.62 D. 2.63 For items 11-15, please refer to the problem below. Teacher Agnese conducted a study to know if modular distance learning affects the students' performances. A class of 40 students of Grade 11-St. Thomas in Mambaling NHS was surveyed and found out that their mean score was 90 with a standard deviation of 4. A similar study in Cantipla IS revealed that # = 85 with a standard deviation of 3. Test the hypothesis at 0.10 level of significance. 1 1. What are the given in the problem? A. & = 90 . Ho = 85, 0 = 3, n = 30 and a = 0.10 B. X = 85, No = 90, 0 = 3, n = 30 and a = 0.10 C. x = 90 . /. = 85, 0 = 30, n = 3 and ar = 0.10 D. F = 90 . Ho = 85, 0 = 30, n = 3 and a = 0.10 12. Which of the following is a statement that describes the null hypothesis. A.Ho : 11 = 85 C. Ho : 11 >> 85 B. Ho : 1 = 85 D. Ho : H1 2 85 13. Which of the following statements describes the alternative hypothesis. A.H. : H - 85 C. H. : [ > 85 B.H. : 1 = 85 D. H. : 1 2 85 14. What is the level of significance? A. 0.01 B. 0.05 C. 0.10 D. 0.15 15. What is the rejection region? A. - 1.96 B. - 1.645 C. 1.96 D. 1.645What I Can Do Instruction: Determine the given, formulate the null and alternative hypothesis, compute the test statistic and construct the acceptance and critical regions. 1. DEO Manufacturing Company has developed new chicharon packaging design. It claims that the new design has an average profit increase of 15% with a standard deviation of 5%. Test the hypothesis that the new chicharon packaging design average profit increase is not 10% .If a random sample of 50 chicharon packaging design is tested with an average profit increase of 5%. Use 10% level of significance. Given: 8 = 5, No = 15, a = 5, n = 50 m = 10% = 0.10 Null Hypothesis Alternative Hypothesis Test Statistic Critical/ Rejection Region Graph1. What set of values for the test statistic could range from negative infinity to positive infinity and which the null hypothesis is rejected? A. Acceptance Region C. Level of Significance B. Critical value D. Rejection Region 2. In the two-tailed test, the rejection region lies at/on of the normal distribution. A. the center B. the left tail C. the right tail D. both tails 3. It is a value that divides the sampling distribution of a test statistic into critical and acceptance region. A.Acceptance Region C. Level of Significance B.Critical value D. Rejection Region 4. Which of the following pairs is INCORRECT? A. Left tailed or directional : The rejection region is at the right side of the acceptance region. C. Left tailed or directional > = : he rejection region is at the left side of the acceptance region. D. Two-tailed test or non-directional test # : The critical region is at the left and right sides of the acceptance region. 5. Which of the following graphs of rejection region shows t22.074? A. B. D. 6. Which of the following graphs of rejection region shows (22.074? A. B. C. D. For items 7-11, please refer the problem below. Teacher Agnese conducted a study to know if modular distance learning affects the students' performances. A class of 40 students of Grade 11- St. Thomas in Mambaling NHS was surveyed and found out that their mean score was 90 with a standard deviation of 4. A similar study in Cantipla IS revealed that # = 85 with a standard deviation of 3. Test the hypothesis at 0.10 level of significance.7. What are the given in the problem? X = 90 , Ho = 85, 0 = 3, n = 30 and a = 0,10 B. x = 85, /46 = 90, 0 = 3, n = 30 and 85 B. Ho : H # 85 D. Ho : 1 2 85 9. Which of the following statements describes the alternative hypothesis. A.H. : H - 85 C. H. : [1 > 85 B.H. : 11 # 85 D. H. : 1 2 85 10. What is the level of significance? B. 0.01 B. 0.05 C. 0.10 D. 0.15 1 1. What is the rejection region? B. - 1.96 B. - 1.645 C. 1.96 D. 1.645 For items 12-15, please refer the problem below. A pediatrician claimed that the average time for a drug to take effect is 15 minutes with a standard deviation of 8 minutes. In a sample of 49 trials, the average time was 18 minutes. Test the claim of a pediatrician that the average time is not equal to 15 minutes. Assume that the average time for a drug to take effect is approximately normally distributed. Test the hypothesis at 0.01 level of significance. 12. Which of the following statements describes the null hypothesis? A. Ho : 1 = 15 C. Ho : [ > 15 B. Ho: p = 15 D. Ho : 1 2 15 13. Which of the following statements describes the alternative hypothesis? A. H. : p = 15 C. Ha : [ > 15 B. Ho: 1 = 15 D. H. : 11 2 15 14. What is the level of significance? A. 0.01 B. 0.05 C. 0.10 D. 0.15 15. What is the value of z- statistic? A. 2.60 B. 2.61 C. 2.62 D. 2.63