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For items 41 -50. The human resource of GADTC claims that the mean monthly salary of the senior high school teacher is 16,550.00 with a standard deviation of 4,300.00. A statistician takes a random of 32 senior high school teachers were found to have a mean monthly salary of 19,375.00. Do the 36 senior high school teachers have higher salaries than the rest? Test the claim at 99% level of significance and critical value of z is 2.33. Answer the following and write it after the sentence or phrase. 41. State the alternative hypothesis in symbol. 42. What is the variable that represents the symbol u, on number 41? 43. Is the claim the null hypothesis of the alternative? 44. What type of test, if one tailed-test specify? 45. The critical value of z is 46. What is the value of z using z-test formula? 47. The value of a is 48. Make a decision: 49 - 50. State the conclusion