2. A real estate expert wanted to find the relationship between the sale price of housesand various characteristics of the houses. He collected data on five variables,recorded in the table, for 12 houses that were sold recently. The five variables are:Sale price of a house in thousands of dollars.Size of the lot in acres.Price:Lot Size:Living Area: Living area in square feet.Age:Type of house: town house (T) or Villa (V)Age of a house in years.PriceLot SizeLivingAreaAgeТуреofhouse2551.425008T1780.9225012TT.T.T.2631.8290050.72.61271800243053200101641.22400182452.12700TV1461.12050282872.8285013V1891.6260092111.723008V1230.5170011Va) Find the regression equation for the town houseb) Find the regression equation for the Villac) What is the price of a town house with a lot size of 1.3, living areaof 1800, and is 7 years old?EBBBBE A> >}>l> >{

Given information: Price Lot size Living area Age Type of house 255 1.4 2500 8 T 178 0.9…

Answered: 2. A real estate expert wanted to find…

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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Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Number of bushels of wheat Choose the correct answer below. O A. The ratio level of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is a natural starting zero point. OB. The ordinal level of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless. O C. The nominal level of measurement is most appropriate because the data cannot be ordered. O D. The interval level of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is no natural starting point.
The speed, in miles per hour, of Mario's serves during tennis practice is shown in the stem-and-leaf plot below. a. What is the range of the speeds, in miles per hour, of Mario's tennis serves? Show or explain how you got your answer. b.What is the mode of the speeds, in miles per hour, of Mario's tennis serves? Show or explain how you got your answer. c.What is the median speed, in miles per hour, of Mario's tennis serves? Show or explain how you got your answer. d. The speed of one additional tennis serve will be added to Mario's stem-and-leaf plot. What is the greatest amount, in miles per hour, the median speed can change? Show or explain how you got your answer.
The national housing authority (NHA) wants to investigate the relationship between the size of houses and the rents paid by tenants in Marikina City. The NHA collected the following information on the sizes (in hundreds of square feet) for eight houses and the monthly rents
A pediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects 5 children and measures their height and head circumference. The data are summarized below. Complete parts (a) through (f) below. Height (inches), x Head Circumference (inches), y 27.75 27.5 25.5 26 270 17.6 17.5 17.1 17.3 17.5 (a) Treating height as the explanatory variable, x, use technology to determine the estimates of B and B4 Po z bo = (Round to four decimal places as needed.) B, xb, = (Round to four decimal places as needed.)
18. Ms. Dunn's class wants to estimate the number of blades of grass in a lawn that is shaped roughly like a 30-foot-by-40-foot rectangle. The children cut 1-inch-by-1-inch squares out of sheets of paper and place these square holes over patches of grass. Each child cuts the grass from their 1-square-inch patch and counts the number of blades of grass they cut. Inside, the class calculates the average number of blades of grass they cut. This average is 37. Using these data, determine approximately how many blades of grass are in the lawn. Explain your reasoning. 22
4. Use this data from the HANES5 survey to estimate the average weight of men 18 and over whose heights were 73 inches. average height: 69 inches average weight: 190 pounds r = 0.41 SD 3 inches SD 42 pounds
Solve
What is the best way to graphically present the shape of the distribution of numeric variable? a. histogram b. scatter plot c. line graph d. pie chart
2. The boxplot below represents data collected on some variable of interest. The mean of this data set is 51. The vertical line represents some value which we will call "X". In the table below there are ten numbers, ordered from smallest to largest. For parts a. through f., write down the number that matches the appropriate value from the table. No number will be used more than once, and four numbers will not be used at all. X : 40 45 50 55 60 - 5.9 - 0.63 0.69 5.1 17.8 20.5 48.5 51.9 53.6 56.3 a. Q1 (25th percentile) = b. Median = c. Range = d. Q3 (75th percentile) = e. IQR = f. Proportion of data larger than X= 1
For the data set: {25, 4, 4, 7, 10, 13, 8, 3, 5, 8, 6, 3, 5. 6, 6, 5, 5, 10, 5, 7, 14, 6, 4} Find the upper and lower outlier boundaries.
The Big Mac index is a way of measuring Purchasing Power Parity (PPP) between different countries. By diverting the average national Big Mac prices to U.S. dollars, the same goods can be informally compared. The Big Mac can also be a good indicator for the individual purchasing power of an economy since he exists worldwide in standard size, composition and quality. Price # of Countries Rel. f. Cum. f 1.50-1.99 2 2.00-2.49 4 2.50-2.99 7 3.00-3.49 9 3.50-3.99 7 4.00-4.49 8 4.50-4.99 9 5.00-5.49 7 5.50-5.99 1 6.00-6.49 2 6.50-6.99 1
For each type of chart determine the type of variable that should be used

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