A= = = E E$ - % )%24+.0.00.00.0BIUMerge & Centrex v f 200AAdd headerQuestion 3The following table represents the real prices of TXR skateboards and the quantity demanded over five years:YearPrice (real dollars)Quantity Denmanded2014120200201515220201613021020171152052018125190x (price)y (Quantity Demanded)120y squaredx times yx squared14,400201420040,00048,40024,000201511522025,30013,225201613021044,10027,30016,900201711520542,02523,57523,75013,225201812519036,10015,625TOTAL6051,025210,625123,92573,375Calculate the expected quantity demanded at the price of $121

Given: x be the price y be the quantity demanded n = 5 ∑x=605∑y=1025∑xy=123925∑x2=73375∑y2=210625

Answered: x (price) y (Quantity Demanded) 120 y…

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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/ 13.14. Owing to change in prices the consumer prict index of the working class in a certain area rose in a month by one quarter of what it was before to 225. The index of food became 252 from 198, that of clothing from 185 to 205, that of fuel and lighting from 175 to 195 and tiat of miscellaneous from 138 to 212. The index of rent, however, remained unchanged at 150. It was known that the weights of clothing, rent and fuel and lighting were same. Find out the exact weight of all groups.
The following table shows the price (in RM) and quantity (in kg) of four different items bought by 'Aleesya Coffee House' from 2008 to 2011: 2009 2011 Items Price Quantity (kg) Quantity (kg) Price (RM) (RM) Rice 8.20 210 9.15 280 Wheat 2.30 120 2.20 95 Sugar 1.30 550 1.65 550 Coffee 0.85 58 1.00 65 Calculate the Simple Average Quantity Index in 2011 compare to 2009 Select one: a. 122.53 b. 106.14 c. 113.75 d. 123.55
The table below indicates the cost of certain air tel kiosk Z 0.15 0.20 0.25 0.75 0.80 0.85 1.85 1.90 1.95 2.00 2.05 Фz 0.0596 0.0793 0.0987 0.2734 0.2881 0.3023 0.4678 0.4713 0.4744 0.4772 0.4798 If it was stated that, the number of telephone calls received at a switchboard is approximately normal with a mean of 580 calls and a standard deviation of 10. REQUIRED Find the possibility that on a given day the number of calls received at the switchboard will be; Exactly 578 Less than 570 Between 561 and 600 inclusive
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4. What do you know about explained and unexplained variation? What is regression line and regression equation?
6. An economist studies the relationship betweenthe price (x) and weekly demand (y) of a certainproduct. Assume the SLR model utility test findsevidence of a linear relationship between priceand demand. Find the appropriate intervalestimate for the mean demand for all weekswhen the price is $31. We know: n = 5 , X-bar = 30,sx2 = 10 , MSE = 12.1 , and Y-hat = 181 − 2.7x.
The R-squared of a regression of an asset’s excess returns against a multi-factor asset pricing model indicates the proportion of the asset’s total volatility that is non-systematic. True False
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3. Show your complete solution.
6. Interval estimation when o is unknown (the data “Alcohol" is provided) Consumption of alcoholic beverages by young women of drinking age has been increas- ing in the United Kingdom, the United States, and Europe (The Wall Street Journal, Feb- ruary 15, 2006). Data (annual consumption in liters) consistent with the findings reported in The Wall Street Journal article are shown for a sample of 20 European young women. 266 82 199 174 97 170 222 115 130 169 164 102 113 171 93 93 110 130 Assuming the population is roughly symmetric, construct a 95% confidence interval for the mean annual consumption of alcoholic beverages by European young women.

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