Answer the following:

-- Directions: Answer the following. 1. What are the steps in testing hypothesis for the population mean? 2. In a right-tailed test, what will you do if the computed value is greater than the critical value? 3. In a left-tailed test, what will you do if the computed value is less than the critical value? 4. What does it mean if you reject the null hypothesis? 5. What do you mean if you fail to reject the null hypothesis? 10. When the null hypothesis is rejected, which of the following statements is true? A. The null hypothesis is incorrect. B. The alternative hypothesis is true. C. There is enough evidence against the null hypothesis. D. There is a very small probability that the given null hypothesis is true. 11. What does it mean when we failed to reject the null hypothesis? A. The conclusion is not signicant. B. The null hypothesis is denitely correct. C. There is enough evidence to back up the null hypothesis. D. There is insufcient evidence to disagree with the null hypothesis. 12. If the t-computed value is 1. 093 and the critical value is 1.699, what will be the decision? A. Reject the null hypothesis. B. Support the null hypothesis. C. Do not reject the null hypothesis. D. Support the alternative hypothesis. 13. What is the rst step in the hypothesis testing procedure? A. Draw conclusion. B. Choose the level of significance. C. State the null and alternative hypotheses. D. Determine the test statistic and compute it. 14. What will you do if the computed value is greater than the critical value? A. Reject the null hypothesis. B. Support the null hypothesis. C. Do not reject the null hypothesis. D. Support the alternative hypothesis. 15. If the computed zvalue is 1.130 and the critical value is 1.96, what conclusion can be drawn? A. Fail to reject the null hypothesis. B. Reject both the null and alternative hypotheses. C. Reject the null hypothesis in favor of the alternative hypothesis. D. Fail to reject both the null hypothesis and alternative hypothesis. . Which of the following will produce a correct decision? A. rejecting a false hypothesis B. rejecting a true null hypothesis C. failure to reject a false hypothesis D. failure to reject a true null hypothesis . If a result is said to be signicant at 5% level, what does it mean? A. The null hypothesis is 5% true. B. The null hypothesis is 5% incorrect. C. We fail to reject the false null hypothesis 5% of the time. D. There is a 5% probability that a true null hypothesis is rejected. . Which value separates the critical region from the non-critical region in a normal curve when testing a hypothesis? A. t-value C. critical value B. z-value D. computed value . What should be the decision if the computed z-value lies in the critical region? A. Reject the null hypothesis. B. Reject the alternative hypothesis. C. Do not reject the null hypothesis. D. Do not reject the alternative hypothesis. . The mean height of women is greater than 64" [inches]. Which of the following represents the null and alternative hypotheses? A. Ho: 11 3 64" C. Ho: 11 5 64" H.: u at 64" Ha: u > 64" B. Ho: 11 > 64" D. Hg: p = 64" H.: u at 64" Ha: p > 64" . What is the last step in the hypothesis testing procedure? A. Draw conclusion. B. Choose the level of signicance. C. State the null and alternative hypotheses. D. Determine the test statistic and compute it. . A one sample t-test is conducted on Ho: 11 = 81.6. The sample has a sample mean a 84.1, s a 3.1, n = 25, and c1 = .01. State your null and alternative hypotheses. A. Ho:p=81.6 C. Ho:u581.6 H.:u#81.6 I-L:p>81.6 B. Ho: 11 = 81.6 D. Ho: p = 64" H.:u81.6 . Perform a hypothesis test on the null hypothesis where u = 6.9. A random sample of 25 items is selected. The sample mean is 7.1 and the sample standard deviation is 2.4. It can be assumed that the population is normally distributed at o = .01. A. There is enough evidence to reject the claim. B. There is enough evidence to support the claim. C. There is not enough evidence to reject the claim. D. There is not enough evidence to support the claim. . In a right-tailed test, what will you do if the critical value is greater than the computed value? A. Reject the null hypothesis. B. Reject the alternative hypothesis. C. Do not reject the null hypothesis. D. Fail to reject the alternative hypothesis. The Coronal Directions: Determine the test statistic to be used, then nd its computed vale. The Coronavirus Disease [COVlD-lg) is an infectious disease caused by a new strain of coronavirus. The World Health Organization [WHO] claims that the incubation period of the virus in the infected person has a mean of 5.1 days. The doctors in the Philippines conducted a research and they found out that incubation period of the virus in human body is 6.03 days with a standard deviation of 3.32. The samples were 46 COVID patients. Is there enough evidence to conclude that the incubation period of the virus is 5.1 days as stated, at a z 0.01? ' Directions: What new realizations did you have about the computation of test statistic? To answer the question, complete the sentences below. 1. The is used if the sample size is large, n 2 _, and the population standard deviation {0) is The formula of the z-test is . 3. The is used when n 8.6 The study has a sample mean of 9.1 and a standard deviation of 2.1 conducted among 25 respondents. Use a = 0. 05. '7. What test statistics should be used? A. t-test C. population mean B. ztest D. standard deviation 8. What is the computed value? A. -1. 190 B. 0. 567 C. 0. 567 D. 1.190 9. How man}r samples are best when dealing with z-test? A. cannot be determined C. smaller than 30 B. exactly 30 D. equal or larger than 30 For nos. 10 12, refer to the given problem below: The Choco Toppings. Inc. is one of the manufacturers of chocolate toppings which uses a machine to dispense liquid ingredients into bottles that move along a lling line. The owner claims that the machine can dispense at an average of 50 grams with a standard deviation of 0.7 grams. A sample of 35 bottles was selected and it was found out that the average amount dispensed in the sample is 49.3 grams. Test the claims of the owner of the company at 5% level of signicance. 10. Which of the following information is correct? A.a=D.S B.a=0.7 03:35 D..u=49.3 11. What test statistic will be used? A. t-test C. population mean B. ztest D. standard deviation 2