Statistics students in Oxnard College sampled 10 textbooks in the Condor bookstore and recorded thenumber of pages in each textbook and its cost. The data are shown below:Number of Pages (x) Cost(y)610100.51000156828146.2988155.241066.5900156115.245.356.65169.05628262251987A student calculates a linear model using technology (Statistics Calculator or Computer)ŷ =x +(Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 245.Cost = $decimal places.)(Use the linear model with yor rounded coefficients and then round your answer to 2

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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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Please help me better understand this problem. Researchers want to determine if heavier cars use more gasoline? To answer this question, a researcher randomly selected 15 cars. He collected their weight (in hundreds of pounds) and the mileage (MPG) for each car. From a scatterplot made with the data, a linear model seemed appropriate and the following output was obtained in photo below. Question: Determine the proportion of the variation in mileage is accounted for by the linear relationship with the weight of the car and also determine the estimate of the regression standard deviation.
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We want to predict the selling price of a house in Newburg Park, Florida, based on the distance the house lies from the beach. Suppose that we're given the data in the table below. These data detail the distance from the beach (x, in miles) and the selling price (y, in thousands of dollars) for each of a sample of fifteen homes sold in Newburg Park in the past year. The data are plotted in the scatter plot in Figure 1. Also given is the product of the distance from the beach and the house price for each of the fifteen houses. (These products, written in the column labelled "xy", may aid in calculations.) Distance from the beach, x (in miles) Selling price, y (in thousands of dollars) xy 5.0 270.1 1350.5 11.5 205.9 2367.85 5.9 309.4 1825.46 12.2 200.6 2447.32 2.6 307.1 798.46 5.9 266.0 1569.4 8.3 297.3 2467.59 18.3 224.2 4102.86 6.5 242.4 1575.6 12.1 192.6 2330.46 11.6 229.4 2661.04 9.5 230.9 2193.55 10.1 277.0 2797.7 13.5 270.8 3655.8 6.2…
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Statistics students in Oxnard College sampled 10 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The data are shown below: Number of Pages (xx) Cost(yy) 853 105.83 433 70.63 824 106.64 247 57.17 261 57.71 457 72.27 522 86.42 482 70.02 544 79.84 987 136.57 A student calculates a linear model using technology (Statistics Calculator or Computer)ˆyy^ = xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 222.Cost = $ (Use the linear model with yor rounded coefficients and then round your answer to 2 decimal places.)
Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The data are shown below: Number of Pages (xx) Cost(yy) 491 84.74 740 121.6 771 127.94 478 92.92 253 45.42 492 90.88 398 81.72 303 67.42 505 92.7 A student calculates a linear model using technology (Statistics Calculator or Computer)ˆyy^ = xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 864.Cost = $ (Use the linear model with yor rounded coefficients and then round your answer to 2 decimal places.)
Range of ankle motion is a contributing factor to falls among the elderly. Suppose a team of researchers is studying how compression hosiery, typical shoes, and medical shoes affect range of ankle motion. In particular, note the variables Barefoot and Footwear2. Barefoot represents a subject's range of ankle motion (in degrees) while barefoot, and Footwear2 represents their range of ankle motion (in degrees) while wearing medical shoes. Use this data and your preferred software to calculate the equation of the least-squares linear regression line to predict a subject's range of ankle motion while wearing medical shoes, ?̂ , based on their range of ankle motion while barefoot, ? . Round your coefficients to two decimal places of precision. ?̂ = A physical therapist determines that her patient Jan has a range of ankle motion of 7.26°7.26° while barefoot. Predict Jan's range of ankle motion while wearing medical shoes, ?̂ . Round your answer to two decimal places. ?̂ = Suppose Jan's…
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I do not have data analysis on my excel, I have no idea how to solve this. The table below contains the average public school classroom teacher's salaries, yy, for an 11-year period. If xx represents the number of years since 1990, use Excel to find a linear model for the data. Year 1990 1991 1992 1993 1994 1995 Salary 33855 35031 34984 34221 35488 37443 Year 1996 1997 1998 1999 2000 Salary 37188 40370 40627 41311 43954 With the salary given by y=mx+b m=? b=?

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