Exercise -1:If the following T-matrix shows the voters' preference fortwo candidates competing in four electoral regions that: tij refersto the preference ratios of candidate i in the region j, where i = 1,2, j = 1, 2, 3, 4. And refers to the number of voters in every regionj, j=1, 2, 3, 4. Calculate the expected number of voters for eachcandidate and interpret of results.[0.6 0.55 0.3 0.480.4 0.45 0.70 0.52B =[80000 70000 150000 90000]T=

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Answered: Exercise -1: If the following T-matrix…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Assume that A, B, and C are subsets of a sample space S with Pr(A) = 0.75, Pr(B) = 0.55, Pr(C) = 0.25. 1. Find Pr(A'), Pr(B'), and Pr(C'). Pr(A') = Pr(B') = %3D Pr(C') = 2. If Pr(A U B) = 0.75., find Pr(A n B). Pr(A n B) = 3. Suppose that we know that B and C are disjoint events. Find Pr[B U C]. Pr[B U C] = 4. Suppose that instead of being disjoint C C B. Find Pr[B U C]. Pr[BU C] =
4 A political poll is assessing the relative strengths of two presidential candidates. A value of + 1 is assigned to every person who states a preference for candidate A and a value of -1 is assigned to anyone who indicates a preference for candidate B.a) Find the sample mean if 60% of those polled indicate a preference for candidate A.b) Write an expression for the sample mean as a function of the sample size and thepercentage of those polled that are in favor of candidate A.c) Find the sample size necessary to estimate the percentage of persons in favor ofcandidate A with a standard deviation no greater than 0. 1 %
Which of these modelling techniques tends to use many small trees? O a. All of these O b. Decision Trees c. Random Forests O d. Gradient Boosting
Q1) Below find the records of 12 randomly selected used pickup trucks (none used commercially) and 11 randomly selected used passenger cars, the time (in years) that they were kept by the original owner before being sold: Used pickup trucks | 3 | 2.5 2.9 5 4.2 3.1 3.3 4 5.3 3.8 4.5 Used passenger cars | 2.2 3 2.8 4.3 4 3.3 2.9 2.1 2 3.1 3 It is known that the standard deviation of used pickup trucks is 2 years and of used passenger cars is 1 year. (a) Investigate, at the 5% significant level, whether the mean time (in years) that used pickup trucks were kept by the original owner before sold is larger than used passenger cars. (b) What assumption is needed to perform the test in (a). (c) Construct the 96% confidence interval for the mean difference of time (in years) were kept by the original owner before sold between used passenger cars and used pickup trucks. Use this confidence interval to tell whether there is difference in the mean time (in years) between these 2 tynes of…
5 Calculate XkYk for the n = 5 data points (×₁,Y₁ ) = (2,4), (×2,Y₂) = (3,5), (×3,Y3) = (4,8), (×4,Y4) = (5,10), and k=1 (X5,5) = (6,14). 5 Σ xxYk = [ k=1 (Simplify your answer.)
An advertising agency wants to know whether the no of column inches of classified ad carried by 2 competing newspapers is equal. The no of column inches appearing in both newspapers, respectively, on 20 randomly selected days follows: 663 & 725, 713 & 806, 626 & 620, 682 & 626, 639 & 595, 651 & 614, 769 & 744, 701 & 719, 723 & 680, 670 & 639, 665 & 602, 639 & 657, 694 & 624, 614 & 614, 651 & 583, 632 & 682, 739 & 657, 657 & 639 & 775 & 745. Use signed-rank test at 0.01 level of sig to test to test whether or not newspaper 1 & 2 carry equal amount of classified ad. What is the z value and decision?
Please give me only correct answer. Someone give me incorrect solution. Otherwise i dislike.
1. Calculate the similarity between these 5 observations using the following 2 methods: a. Matching Coefficient Matrix b. Jaccards Coefficient Matrix Breathing Loss of Sore Observations fever cough fatigue headache difficulty taste throat 1 1. 1 1 2 1. 1 3 1 1 1 4 1 1 1 1 5 1. 1. 1. 1
Please send me answer within 10 min!! Do all 2 parts. I will rate you good for sure!!
1. Let y1,.. , Yn be a random sample from a uniform distribution on the interval (0, B). Let B1 2 Li=1 Yi and B, = ) Max(y1,.., Yn) be estimators for B. Find the sampling distribution of B2 Show that B, and B, are unbiased estimators for B. 11.
Assume that A, B, and C are subsets of a sample space S with Pr(A) = 0.8, Pr(B) = 0.6, Pr(C) = 0.15. 1. Find Pr(A'), Pr(B'), and Pr(C'). Pr(A') = Pr(B') = Pr(C') = 2. If Pr(A U B) = 0.85., find Pr(AN B). Pr(AN B) = 3. Suppose that we know that B and C are disjoint events. Find Pr[BUC. Pr[BUC] = 4. Suppose that instead of being disjoint C C B. Find Pr[B U C]. Pr[BUC] =
12. Establish the formula nro;0y = n¡7¡Ox, Oy, + n2r20x0y, + n¡dz, dy, + nzdz, dyn where n1, n2 and n are the sample sizes of the first, second, and the combined samples x1, y1, x2, Y2, x, y, their means ; r¡, r2 their coefficient of correlation Ozy, Oy,, Ox Oy, Ox, Oy their standard deviations and dz, = x1 - X, dz, =x2 – X, dy, = y1 – J, dy, = y2 - y. %3D

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