Managerial statistics

SUBMIT YOUR ANSWERS BY 11:50 p.m., Saturday.October 14, 2017 [NO EXCEPTION 2 points each for #1 thru #7, #9, #10, #12, #13, and #14 . 3 points each for #8 and #11 LAST NAME: ID: . A. Find #1. Mean, #2. Median, and #3. Midrange for the following data, 27,17, 11, 6, 8, 5, 25, 16, 7, 6, 5, 2, 6, 14, 18, 13, 12, 10, 30, 28 B. For a following sample, find #4. Mean#. Median, and #6. Sample variance, X Frequency xf xxf cf . 230 20 240 10 250 40 270 30 C. Random Variable X has a Normal Distribution, N(30, 25). #7. P(X<40) = #8. P(34 < X < 42) = D. Random Variable X has a Binomial Distribution, B(5, 0.5). #9. P(X > 1) = E. Random Variable X has a Binomial Distribution, B(100, 0.2). #10. Standard deviation of X = Use Normal approximation. #11. P(X < 12) = F. For a student’s t-table, find m such that P(t > m) = 0.05 with Sample size , 10. #12. M = G. If P(A) = 0.6, P(B) = 0.7, and P(A or B) = 0.5, then 13. P(A and B) = H. If events A and B are independent, then # 14. P(B l A) = I. If P(A and B) = 0, then #15. Events A and B are always independent. TRUE / FALSE, _________Choose one. *If #15 is correct then plus 2 points, but incorrect then minus 1 point.