8. Which of the following is the given population standard deviation? А. 2 В. 2.58 С. 7 D. 99% 9. What is the margin of error? А. 2 В. 2.58 10.Compute for the appropriate sample size. А. 80 В. 81 11. If the confidence level is lowered to 90% what will be the appropriate sample С. 7 D. 99% С. 82 D. 83 size? А. 34 В. 35 C. 36 D. 37

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