MA-336 KI3A Exam 3 12 16411 13. Which of the following is the confidence interva

Question

MA-336 KI3A Exam 3 12 16411 13. Which of the following is the confidence interval with the smallest margin of error? A. (4,3) B.C-2,2) ution D. (4.5,12.1) 14. Find the critical value for 80% level of confidence r the confidence for a sample of size 32. A. 0.84 Find the critical valuefor 90% level of confidence B. 0.85 C. 1.28 D. 1.29 r the sample 15. for a sample of size 16. A. 1.64 B. 1.65 C. 1.746 D. 1.753 Find the margin of error for the 0.95% confidence 16. must interval where= 12.5, s 2.0, n 6 A. 2.0 B. 2.1 C. 2.3 D. 5.1 lue by 17. Find the P-value for a left-tailed z-test, where z =-1.55 A. 0.0606 B. 0.1212 the C. 0.2424 D. 0.9394 18. Find the P-value for a two-tailed z-test, where z = 2.30 A. 0.0054 B. 0.0107 C. 0.0214 D. 0.9893 Find the critical value for a left-tailed t-test, where n=10,=0.05 19.

Explanation / Answer

Solution:-

13) (A) 4,3 have smallest margin of error.

14)

C.L = 80%

zcritical = 1.28

15)

C.L = 90%

D.F = 16 - 1

D.F = 15

tcritical = 1.746

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