1,054,848 c. 1,405,888 d. 1,045,828 5. Evaluate: 12xy, when x = 8 and y = 11. a. 31 b. 228 c. 1056 d. 188 6. Write
{ b = 2 + a } b) Multiplies b by 4 and stores the result in a. { a = b * 4} c) Divides a by 3.14 and stores the result in b. { b = a MOD 3.14 } d) Subtracts 8 from b and stores the result in a { a = 8 – b } 4. Assume the variables result, w, x, y and z are all integers, and that w=5, x=4, y=8 and z=2. What value will be stored in result in each of the following statements?
Chapter 6 8. 1. The parameters of the opportunity set are: E(rS) = 15%, E(rB) = 9%, sS = 32%, sB = 23%, r = 0.15, rf = 5.5% From the standard deviations and the correlation coefficient we generate the covariance matrix [note that Cov(rS, rB) = rsSsB]: Bonds Stocks Bonds 529.0 110.4 Stocks 110.4 1024.0 The minimum-variance portfolio proportions are: wMin(B) = 0.6858 The mean and standard deviation of the minimum variance portfolio are: E(rMin) = (0.3142 × 15%) + (0.6858 × 9%) = 10.89% = [(0.31422 × 1024) + (0.68582 × 529) + (2 × 0.3142 × 0.6858 × 110.4)]1/2 = 19.94% % in stocks % in bonds Exp. return Std dev. 00.00 100.00 9.00 23.00 20.00 80.00 10.20 20.37 31.42 68.58 10.89 19.94 Minimum variance
We can conclude that the data are Poisson distributed. Chi-Square test of independence Problem 12.12 Use the following contingency table to determine whether variable 1 is independent of variable 2. Let α = .01 | Variable 2 | Variable1 | 24 | 13 | 47 | 58 | | 93 | 59 | 187 | 244 | Step 1 Ho: the two classifications are independent Ha: the two classifications are dependent Step 2 d.f = (r – 1) (c – 1) Step 3 α = 0.01 x 2 0.01, 3df = 11.3449 Step 4 Reject Ho if x 2 > 11.3449 | Variable 2 | Total | Variable1 | 24 (22.92) | 13 (14.10) | 47 (45.83) | 58 (59.15) | 142 | | 93 (94.08) | 59 (57.90) | 187 (188.17) | 244 (242.85) | 583
In at 6.0% for Safeway 2. What was the likely source of that company’s superior profit performance in 2006? (Hint: Decompose ROE and ROA into their individual component parts.) When we find the answer to the first question we already know that much of Kroger’s higher ROE performance in 2006 is found as a beneficial effect of financial leverage. Here are the findings for question 2: 1.
1.328 b. 2.539 c. 1.325 d. 2.528 ANSWER: a -go to the t-dtistrubution and use α=0.20 or confidence of 80% and use dof=19 3. Read the t statistic from the table of t distributions and circle the correct answer. A one-tailed test (upper tail), a sample size of 18 at a .05 level of significance t = a. 2.12 b.
Although the broker option is a viable investment with positive returns, as shown on Table 2, the NPV is not as favorable compared to option 1. The profit index for the broker option calculates to 2.84 compared to 3.34 for the high-tech option. This means that for every dollar invested Guillermo returns this percentage based on the initial investment and the current cash inflows per
Given any input (a0,a1,a2,…a2n-1 describe the permutation of the leaves of the recursion tree. (Hint: write indices in binary and see what the relationship is of the bits of the ith element of the original sequence and the ith element of the resulting permutation of elements as they appear on the leaves on the recursion tree.) 3) Timing Problem in VLSI chips. Consider a complete balanced binary tree with n = 2k leaves. Each edge has an associate positive number that we call the length of this edge (see picture below).
Practice Problems Psy 315 Chapter 2: 11. The mean is 2, the median is 2, the sum of squared deviations is -52, the variance is -2.47, and the standard deviation is 1.57. 12. The mean is 1.361, the median is 1.3124, the sum of squared deviations is 0.07608920.0190223, the variance is 0.0190223, and the standard deviation is 0.1379213544. 13.
2 4. (a) Factorise x2 + x – 6. 2 (b) Multiply out the brackets and collect like terms. (3x + 2)( x2 + 5x – 1) 3 [ X100/201] Page four Marks 5. The diagram below shows the graph of y = –x .