Reminder: DO NOT WRITE ANYTHING ON THIS STUDENT LEARNING GUIDE White answers on a separate answer sheet Enrichment Activity I Fill in the blank with the correct word to make each statement correct ($ points) 1. is a statistical method applied in making decisions using experimental data. is a proposed explanation. assertion, or assumption about a population parameter or about the distribution of a random variable 3. When the alternative hypothesis is two-sided like Ha: p = po. it is called test. 4. When the given statistics hypothesis assumes a less than or greater than value, it is called test statistics makes use of sample data to make an inference and conclusion about a population. Enrichment Activity 2: Answer the following questions. (1 point each) I What is a parameter? 2. What are the two commonly used parameters? What are their symbols or notations? 3. What are the other notations used as parameters? 4. To identify the parameter to be tested in a claim/hypothesis, what are the concepts to consider? WRITTEN TASK NO. 1 Directions: Choose the best answer to the given questions or statements. Write the letter of your answer on a separate sheet of paper. (1 point each) 1. It is the statistical method used in making decisions using experimental data. A. observation B. simple analysis C. analytical testing D. hypothesis testing 2. What term is being used to describe a proposed explanation, assertion, or assumption about a population parameter or about the distribution of a random variable? A. statistic B. decision C. hypothesis D. probability 3. It is also referred to as a probability of committing an incorrect decision about the null hypothesis. A. level of error C. level of acooptance B. level of hypothesis D. level of significance 4. Which of the following would be an appropriate null hypothesis? A. The mean of a sample is equal to 80. C. The mean of a population is not equal to 80. B. The mean of a population is equal to 80. D. The mean of a population is greater than 80, 22 5. Which of the following describes a null hypothesis using two-tailed test? A. HO: H = HO B. HO: H # HO C. HO: H 2 p0 D. HO: H S HO "Bringing our school closer to your home...6. Which of the following describes an alternative hypothesis using two tailed test? A. Ha: p 50 years old C. Ha: p # 50 years old D. Ha: # = 50 years old A. 1% 7. Which of the following must be used as the significance level if we want a lower possibility of correct decision? B. 2% C. 5% D. 10% 8. Which of the following would be an appropriate alternative hypothesis for one-tailed test? A Ha: | = 85 B. Ha: # 2 85 C. Ha: # 2 85 D. Ha: H -85 9. In a one-tailed test, in which critical values below will the computed z of 2.312 falls in the non-rejection region? A. 1.383 B. 1.533 C. 2.228 D. 2.354 10. When is a Type I error committed? A. We reject a null hypothesis that is true. C. We fail to reject a null hypothesis that is true B. We reject a null hypothesis that is false. D. We fail to reject a null hypothesis that is false. 1 1. When is a Type II error committed? A. We reject a null hypothesis that is true. C. We fail to reject a null hypothesis that is true. B. We reject a null hypothesis that is false. D. We fail to reject a null bypothesis that is false. 12. Which of the following is a Type I error? A. HO is true; reject HO. C. HO is true; fail to reject HO. B. HO is false; reject HO. D. HO is false, fail to reject HO. 13. If the computed z-value is 1.286 and the critical value is 1.383, which of the following statements could be true? A. It lies in the rejection region, Ho must be rejected B. It lies in the rejection region, hence we fail to rejectHo. C. It lies in the non-rejection region, Ho must be rejected D. It lies in the non-rejection region, hance we fail to rejectHo. 14. Using a left-tailed test, which of the following value of z will not fall in the rejection region where the critical value is - 1.638? A, - 1.637 B. - 1.639 C. - 1.641 D. - 1.706 23 15. If the computed z-value is 1.915 and the critical value is 1,812, which of the following statements could be true? A. It lies in the rejection region, Ho must be rejected B. It lies in the rejection region, honce we fail to rejectHo. C. It lies in the non-rejection region, Ho must be rejected. D. It lies in the non-rejection region, hence we fail to rejectHo. 16. The numerical measure that describes the certain characteristics of a population is called A. sample B. statistics C. parameter D. population 17. What are the two common parameters of normal distribution? A. H and a B. G and p C. p and # D. pand p 9 18. Anna wants to estimate the average shower time of teenagers. From the sample of 50 teenagers, she found out that it takes 5 minutes for teenagers to shower. What is the parameter? A. sample of 50 teenagers C. average shower time of teenagers B. 50 teenagers in 5 minutes D. took 5 minutes for teenagers to shower 19. What kind of parameter is applied in the given situation? "The mean height of all Grade II students is 170 cm." A. mean B. variance C. proportion D. standard deviation 20. An education official wants to estimate the proportion of adults aged 18 and above who had read at least one book during the previous year. A random sample of 1,006 adults aged 18 or older is obtained, and 835 of those adults had read at least one book during the previous year. Determine the parameter in the situation. A. The parameter is the 835 adults. B. The parameter is the average of adults aged 18 and above. C. The parameter is the proportion of adults who had read at least one book during the previous year. D. The parameter is the random sample of 1,006 adults 18 and above who had read a book in the previous year, 21. Which of following denotes the true value that would be obtained if a census rather than a sample was undertaken? A. sample B. statistic C. parameter D. population 22. Which of following is NOT a parameter? A. G B. E C. H D. P 23. Which of the following symbols is used for population variance? A. I B. q' C. a D. JL 24. A study claims that the mean survival time for a certain cancer patient treated immediately with chemotherapy and radiation is 24 months. Which is the parameter? A. 24 months C. mean survival time for a certain cancer patient B. study claims on cancer D. mean survival time of 24 months with chemotherapy and radiation 25. What is the parameter to be tested in this claim? As stated by a company's shipping department, the number of