Managerial Statistics

Managerial Statistics

Managerial Statistics

SUBMIT YOUR ANSWERS by 11:50 p.m., Saturday, March 18,2017 [NO EXCEPTION]
2 points? each for #1 thru #7, #9, #10, #12, #13, and #14
3 points? each for #8? and #11? (Last)
The Mid-term BUS 600 DE, Spring, 2017 ID:___________ Name: _______________________
A. Find 1. Mean, 2. Median, and 3. Midrange for the following data;
27, 17, 11, 8, 25, 15, 16, 14, 14, 14, 18, 13,12,10,30,28.
B. For a following sample, find 4. Mean, 5. Median, and 6. Sample Variance.
X frequency____________________________________
10 10
30 20
40 30
50 40
C. Random variable X has a Normal distribution, N(40, 25).
7. P(X > 35) =
8. P(34 < X < 42?) =
D. Random variable X has a Binomial distribution, B(6, 0.5).
9. P(X < 5) =
E. Random variable X has a Binomial distribution, B(36, 0.5).
10. Standard deviation of X =
?11. Use Normal approximation, P(X < 19)? =
F. For a student’s t-table, find m such that P(t > m) = 0.05 ?with? sample size is 10.
12. m =
G. If P(A) = 0.5, P(B) = 0.6, and (A or B) = 0.7, then 13. P(A and B) =
H. If events A and B are independent, then 14. P(A l B) =
Managerial Statistics