can i get help with 4.3 and 4.4 Let Z1, Z2 be a random sample of size 2 from N(0,1), and X1, X2 a random sample of size 2from N(1, 1). Suppose the Z;'s are independent of the X;'s.Q4.1What is the distribution of X + Z?Q4.2What is the distribution of(Z1 + Z2)/ V[(X2 – X1)² + (Z2 – Z1)²]/2?Q4.3What is the distribution of[(X1 – X2)2 + (Z1 – Z2)² + (Z1 + Z2)²]/2?-

In this question only given 4.3, so we solve only 4.3.

Answered: Let Z1, Z2 be a random sample of size 2…

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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Several states have argued that the 65-mph speed limit has no justification and have refused to enforce it. The federal Department of Transportation (DOT) believes that the 65-mph limit saves lives. To illustrate its contention, the department regressed the number of traffic fatalities (Y) last year in a state on the state’s population (X1), the number of days of snow cover (X2), and the average speed of all cars (X3). The results are shown below. Table 10: Model Summary Model R R Square Adjusted R Square Std. Error of the Estimate 1 .821 a .780 .613 3.258 a. Predictors: (Constant), population, days of snow, average speed Table 11: Coefficients Coefficientsa Model Unstandardized Coefficients Standardized Coefficients t Sig. B Std. Error Beta 1 (Constant) 1.4 2.957 .473 .584 Population .00029 .00003 .0034 9.667 .000 Days of Snow 2.4 .62 .759 3.871 .000 Average Speed 10.3 1.1…

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