Please help to solve this. 5.Consider the equation Y = Bo + B₁X₁ + B₂X₂, where X₁ ~ (μx₁,₁) is independent of X₂ ~(μx₂,0₂). With this information, answer the following questions:(a) What is the expected value of X₁? What is the expected value of X2?(b) What is the variance of X₁? What is the variance of X₂?(c) What is the expected value of Y?(d) What is the variance of Y?(e) What is the marginal effect of X₁ on Y? What is the marginal effect of X₂ on Y?

As per the Bartleby guildlines we have to solve first three subparts and rest can be…

Answered: 5. Consider the equation Y = Bo + B₁X₁…

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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The management of a supermarket wants to adopt a new promotional policy of giving free gift to every customer who spends more than a certain amount per visit at this supermarket. The expectation of the management is that after this promotional policy is advertised, the expenditure for all customers at this supermarket will be normally distributed with mean 400 L.E and a variance of 900 L.E2. 2) In a sample of 100 customers, what is the number of customers whose expenditure is between 420 L.E and 485 L.E?
A finance analyzer have come to the conclusion that he wants to purchase stocks from Company A, with an expected yield of E(X) = 4% and variance to the yield being V(X) = 0.49. Another stock from another Company B have an expected yield of E(Y) = 6% and variance V(Y) = 0.64. The correlation of the yield between the two stocks is p(X,Y) = 0.3. The finance analyzer wants to invest a portion p(0 < p < 1) into Company A stocks, and the rest (1 - p) into company B stocks. The combined investment have a yield of W = pX + ( 1 - p)Y. For p = 0.4, such that W = 0.4X + 0.6Y. What is the expected value and variance for W.
The management of a supermarket wants to adopt a new promotional policy of giving free gift to every customer who spends more than a certain amount per visit at this supermarket. The expectation of the management is that after this promotional policy is advertised, the expenditure for all customers at this supermarket will be normally distributed with mean 400 L.E and a variance of 900 L.E2. 1) If the management wants to give free gifts to at most 12% of the customers, what should the amount of expenditure be above which a customer would receive a free gift? 2) In a sample of 100 customers, what is the number of customers whose expenditure is between 420 L.E and 485 L.E? 3) What is a probability of selecting a customer whose expenditure is differ than the population mean expenditure by at most 50 L.E? 4) What is the percentage of customers whose expenditure is at least 450 L.E.?

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