13. The sign of the alternative hypothesis in a two-tailed test is always D. less than A. equal B. not equal C. greater than 14. This hypothesis states that there is no difference between population parameters and the hypothesized value. A. hypothesis D. two-tailed hypothesis B. alternative hypothesis C. null hypothesis 15. "The ratings given by male and female students with regard to the online teaching skills of their teachers is the same." This stateme example what kind of hypothesis? A. one-tailed hypothesis B. alternative hypothesis C. null hypothesis D. two-tailed hypothesis 16. "The use of social media as modern approach of advertising will increase the demand for a new product." This is an exam hypothesis. A. Mean B. null C. alternative D. two-tailed 17. Which is the correct alternative hypothesis for one-tailed test? A. μ = 25 B. u 25 C.μ ≥ 25 D. p < 25 18. Mrs. Nazareth conducted a research on the preference of residents of Mayapa in choosing their venue for occasions. It showed that 25% residents would rather celebrate it in a resort than hotels. Which choice best represents a parameter? A. 25 residents of Mayapa B. All residents of Mayapa C. the percentage of residents D. resort choice than hotel 19. A customer service table claims that the mean waiting time in line is less than 3 minutes. A random sample of 25 customers has a mean c minutes with a standard deviation of 0.5 minute. Test the customer's service claim at a = 0.05. What is the parameter in the given problem C. random sample of 25 costumers A. mean of 1.8 minutes B. the level of significance of 0.05 D. the mean waiting time is less than 3 minutes 20. 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 21. If the z critical value is 1.92 and the result of your computed z-value is 1.325, which of the following statements could be true? A. The computed value lies in the rejection region, Ho must be rejected. B. The computed value lies in the rejection region, hence we fail to reject Ho. C. The computed value lies in the non-rejection region, Ho must be rejected. D. The computed value lies in the non-rejection region, hence we fail to reject Ho. 22. If the critical t-value is 1.8331 and the computed t-value is 2.344, the computed t-value is at the A. Non-rejection B. rejection region. 23. If the critical t-value is -1.8331 and the computed t-value is -2.344, the computed t-value is at the A. Non-rejection B. rejection region. 24. If the critical t-value is ±1.8331 and the computed t-value is -1.344, the computed t-value is at the B. Non-rejection B. rejection region. 25. Supposed the teacher was able to compute a t-value of 0.83, what will be her decision given this graphical illustration for the critical value. A. Fail to reject the null hypothesis B. Reject the null hypothesis 0 0.5 1 1.5 2