Please answer this all correctly

And please also give the explanation

Thank you

16. Which of the following population parameters is used as symbol for the mean or average population? A.O B. H C. p D. x 17. Which of the following statements best describes a parameter? A. It describes the sample. C. It describes the hypothesis. B. It describes the researcher. D. It describes the population. 18. A researcher estimates that the average height of buildings in a large city is at least 700 feet. Based on the given data, which is the parameter? A. the researcher C. buildings in the large city 2022/05/24 15:25 B. at least 700 feet D. the average height of the building 19. Which of the following symbols represents population standard deviation? A. p B. O C. p C. H 20. SWS survey was trying to see if people in the Philippines thought the pollution was too high. Which choice best represents a parameter? A. all people in the Philippines B. 500 randomly selected residents of the Philippine.. C. 71% of the residents surveyed who thought the pollution was too high D. percentage of all people in the Philippines who thought the pollution was too high 21. In formulating the alternative hypothesis, what mathematical symbol is applicable to use in the statement, "The average score of Grade 11 (ABM) in Business Statistics is 75."?22. A vacuum cleaner consumes less than 46 kwh per year. What hypothesis test can you use in this claim? A. left-tailed B. right- tailed C. null hypothesis D. alternative hypothesis 23. Which of the following steps is not included in formulating hypothesis? A. Identify the claim to be tested. B. Translate the claim into mathematical symbolsotations. C. Use the data about sample then compute the test statistic. D. Formulate first the null hypothesis and then the alternative hypothesis. 24. A scientist invented a substance that increases the life of an automobile battery. If the mean lifetime of the battery is 24 months, then what are his hypotheses? A. Ho: u=24, Ha: (#24 C. Ho: 1=24, Ha: US24 B. Ho: 1=24,: u>24 D. Ho: p=24, Ha: p>24 25. A researcher reports that the average salary of an accountant is more than #40,000. A sample of 30 accountants has a mean salary of P42,500. At a = 0.05 test, it is found out that an accountant earns more than #40,000 a month. The standard deviation of the 2022/05/24 15:25 population is #3,000. What is the alternative hypothesis? A. The average salary of an accountant is equal to $40,000. B. The average salary of an accountant is greater than $40,000. C. The average salary of an accountant is less than or equal to #42,500. D. The average 26. If the variance is unknown and the sample size is small, which test statistic is appropriate? A. t-test B. z-test C. two-tailed test D. one-tailed test 27. Which of the following characteristics can be considered in using z-test/statistic as an appropriate test? A. Sample standard deviation is known. C. The sample size is greater than 30. B. Population is not normally distributed. D. Population standard deviation is unknown. 28. What test is appropriate if the distribution is not normal, there is a sufficiently large sample size, and population variance isB. Population is not normally distributed. D. Population standard deviation is unknown. 28. What test is appropriate if the distribution is not normal, there is a sufficiently large sample size, and population variance is unknown? A. t-test B. 2-test C. null test D. hypothesis test 29. In a sample n=100 selected from a normal population =56 and s=12, what statistical test is applicable? A. t-test B. z-test C. left-tailed test D. two-tailed test 30. The t-test for single sample mean may be used when all the following conditions are true except A. Sample size is less than 30. C. Population standard deviation (o) is known. B. Sample standard deviation (s) is known. D. Data are approximately normally distributed. 31. In a right-tailed test with a=0.01, the critical value of z is: A. 1.28 B. 1.65 C. 1.96 D. 2.33 32. The value that separates a rejection region from an acceptance region is called a 2022/05/24 15:25 A. Parameter B. Hypothesis C. critical value D. significance level 33. For a two-tailed test with a sample size of. 40, the null hypothesis will be rejected at 5% level of significance if the test statistic is: A. ZS-1.28 or zz1.28 B. zs-1.645 or z21.645 C. z