Let qty denote quantity demanded, price denote price, and suppose we estimate the modellog(qty) = ß1 + B2 log(price)+ ewhere E[e| log(price)] = 0 and we assume e is homoscedastic so Var(e| log(price)) = o². In the data, we findE- log(price,) = 0, b1 = 2.5, b2 = 0.9, Var (bj) = 1, and Var (b2) = 0.1. Suppose we are interested in estimating a = B1 + 10B2 and for this end we use theestimator å1= b1 + 10b2. What is your estimate for the variance of A? (Usually denoted by Var (Â))O a.We do not have enough information to compute Var (Â).O b. All the other options are incorrect.О с. 10O d. 11Ое. 1O f. 2

Answered: Image /qna-images/answer/ca6550cb-0e5e-47ac-832d-111d1dceb433.jpg

Answered: Let qty denote quantity demanded, price…

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 price P of gasoline increases to a maximum and then stays at a fixed price. What is the rate of change dp/dt and how is it changing at the time when the price reaches a maximum?a. dp/dt is negative at the maximum and is decreasing.b. dp/dt is equal to zero at the maximum and remains the same.c. dp/dt is positive at the maximum and is decreasing.d. dp/dt is negative at the maximum and is increasing.
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Suppose that the demand function for Brand X is P = 360 - 50Qd. Show whether going from 3 to 4 units is elastic or inelastic.
A standard "money demand" function used by macroeconomists has the form In(m) = Bo + B, In(GDP) + B2R, Where m is the quantity of (real) money, GDP is the value of (real) gross domestic product, and R is the value of the nominal interest rate measured in percent per year. Supposed that B, = 2.15 and B, = -0.06. %3D What is the expected change in m if GDP increases by 3%? The value of m is expected to V by approximately%. (Round your response to the nearest integer) What is the expected change in m if the interest rate increases from 1% to 9%? The value of m is expected to ▼ by approximately %. (Round your response to the nearest integer)
In simple linear regression analysis, all the variables are in their natural logs to ensure that P37 Select one: a. None of the answers are correct b. $ log ⁡xy= log ⁡x+ log ⁡y $ c. $ log⁡ \frac{x}{y}= log⁡x- log⁡y $ d. $ log⁡ x^2 = n log⁡ x $
6 Assume an hypothetical consumer faced by the following utility function; U=X^2Y ( squared times y). After a bad harvest and thus bad economic conditions, the price of good X increases from Ksh.4.2 to Ksh. 4.8, while the price of good Y which was ksh. 4 increased to ksh.5. The income of the consumer was ksh. 30 before and after the good harvest. Calculate the CV and EV.
X y mentum.com/courseware-delivery//ua/41106/100019194/aHR0cHM6Ly9mMS5hcHAUZWRtZW50dW0uY29tL2xlYXJuZXItdWkvc2Vjb25kYXJ5L3... + Submit For Score cted files @ 2 Comments X W S X → # 3 Unit Activity: Exponential and Logarithmic Functions e d Task 2 C C. 54 Exponential Regression In this activity, you will use technology to develop an exponential model of a data set and then use the model to make predictions. Years 0 2 Part A $ Over a 10-year period, the scientists recorded the number of oak trees infected with oak wilt in the forest. Their data is in the table. 4 t 8 10 .V % 45 Number of Trees t g 1 1 3 9 17 31 Oll р 10 of 11 Print > A CAO May 21 5:11 US → + 11 ? 1 ► Save & Exit 11 LO X с backspace ent
How does time-period or length of run affects the behavior of the supply function?
Do not know how to do
One of the possible models for the coronavirus is the logistic curve, shown here without scale. This curve shows the total number of cases of people infected with the virus. The rate of change for this curve is the number of ca es per day. 1. On the curve, mark the point at which the number of cases per day is greatest. What is a mathematical term for this point? 2. One of the criteria for re-opening activities is fourteen consecutive da s with a decreasing number of cases. Where is this on the curve? Number of Infected people as a function of time
10. The number of male alates in an ant colony has been found to be approximately a linear function of the age of the colony, with a 5-year-old colony having 8.2 alates on average, and a 17-year-old colony having an average of 33.4 alates. Write the number of male alates ( y ) as a linear function of the age of the colony in years (t).

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