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Disk drives have been getting larger. Their capacity is now often Co a) Find the slope estimate, b₁. b₁ = (Round to two decimal places as needed.) b) What does the slope mean, in this context? OA. It indicates the additional capacity in TB for each additional dollar of price. OB. It indicates the additional price in dollars for each additional TB of capacity. OC. It indicates the price for a hard drive with no capacity. This could be interpreted as the cost of the parts common to all drives. D. It indicates the additional capacity in gigabytes for each additional dollar of price. OE. It is meaningless and should not be interpreted. c) Find the intercept, bo bo = =(Round to two decimal places as needed.)

Disk drives have been getting larger. Their capacity is now often Co a) Find the slope estimate, b₁. b₁ = (Round to two decimal places as needed.) b) What does the slope mean, in this context? OA. It indicates the additional capacity in TB for each additional dollar of price. OB. It indicates the additional price in dollars for each additional TB of capacity. OC. It indicates the price for a hard drive with no capacity. This could be interpreted as the cost of the parts common to all drives. D. It indicates the additional capacity in gigabytes for each additional dollar of price. OE. It is meaningless and should not be interpreted. c) Find the intercept, bo bo = =(Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
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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Disk drives have been getting larger. Their capacity is now often C a) Find the slope estimate, b₁. b₁ = (Round to two decimal places as needed.) b) What does the slope mean, in this context? OA. It indicates the additional capacity in TB for each additional dollar of price. OB. It indicates the additional price in dollars for each additional TB of capacity. OC. It indicates the price for a hard drive with no capacity. This could be interpreted as the cost of the parts common to all drives. D. It indicates the additional capacity in gigabytes for each additional dollar of price. OE. It is meaningless and should not be interpreted. c) Find the intercept, bo- bo= (Round to two decimal places as needed.) d) What does the intercept mean, in this context? Is it meaningful? OA. It indicates the price for a hard drive with no capacity. It is meaningless and should not be interpreted. B. It indicates the additional capacity in TB for each additional dollar of price. It is meaningful in that it could be interpreted as the cost of the parts common to all drives. OC. It indicates the capacity for a hard drive that does not cost anything. It is meaningful in that it could be interpreted as the minimum capacity for all drives. OD. It indicates the capacity for a hard drive that does not cost anything. It is meaningless and should not be interpreted. Cicu. e) Write down the equation that predicts Price from Capacity. Price + = Capacity (Round to two decimal places as needed.) f) What would you predict for the price of a 20.0 TB disk? $(Round to the nearest cent as needed.) g) You have found a 20.0 TB drive for $2570. According to the model, does this seem like a good buy? How much more or less would you pay compared to what the model predicts? s paying $2570 for a 20.0 TB drive a good buy? OA. Yes. Because the actual price is more than the predicted price. B. No. Because the actual price is less than the predicted price. OC. Yes. Because the actual price is less than the predicted price. OD. No. Because the actual price is more than the predicted price. How much more or less would you pay compared to what the model predicts? than what you expected to pay. You would pay $ (Round to the nearest cent as needed.) h) Does the model overestimate or underestimate the price? A. It overestimates the price. B. It underestimates the price. i) The correlation is very high. Does this mean that the model is accurate? Use the scatterplot shown below. A. The model minht Q AENO
Transcribed Image Text:Disk drives have been getting larger. Their capacity is now often C a) Find the slope estimate, b₁. b₁ = (Round to two decimal places as needed.) b) What does the slope mean, in this context? OA. It indicates the additional capacity in TB for each additional dollar of price. OB. It indicates the additional price in dollars for each additional TB of capacity. OC. It indicates the price for a hard drive with no capacity. This could be interpreted as the cost of the parts common to all drives. D. It indicates the additional capacity in gigabytes for each additional dollar of price. OE. It is meaningless and should not be interpreted. c) Find the intercept, bo- bo= (Round to two decimal places as needed.) d) What does the intercept mean, in this context? Is it meaningful? OA. It indicates the price for a hard drive with no capacity. It is meaningless and should not be interpreted. B. It indicates the additional capacity in TB for each additional dollar of price. It is meaningful in that it could be interpreted as the cost of the parts common to all drives. OC. It indicates the capacity for a hard drive that does not cost anything. It is meaningful in that it could be interpreted as the minimum capacity for all drives. OD. It indicates the capacity for a hard drive that does not cost anything. It is meaningless and should not be interpreted. Cicu. e) Write down the equation that predicts Price from Capacity. Price + = Capacity (Round to two decimal places as needed.) f) What would you predict for the price of a 20.0 TB disk? $(Round to the nearest cent as needed.) g) You have found a 20.0 TB drive for $2570. According to the model, does this seem like a good buy? How much more or less would you pay compared to what the model predicts? s paying $2570 for a 20.0 TB drive a good buy? OA. Yes. Because the actual price is more than the predicted price. B. No. Because the actual price is less than the predicted price. OC. Yes. Because the actual price is less than the predicted price. OD. No. Because the actual price is more than the predicted price. How much more or less would you pay compared to what the model predicts? than what you expected to pay. You would pay $ (Round to the nearest cent as needed.) h) Does the model overestimate or underestimate the price? A. It overestimates the price. B. It underestimates the price. i) The correlation is very high. Does this mean that the model is accurate? Use the scatterplot shown below. A. The model minht Q AENO
K Disk drives have been getting larger. Their capacity is now often given in terabytes (TB) where 1 TB = 1000 gigabytes, or about a trillion bytes. A survey of prices for external disk drives found the data shown to the right. For this data, we want to predict Price from Capacity. Complete parts a through i below. Click the icon to view the disk drive data and summary statistics. Disk Drive Data and Summary Statistics Capacity (in TB) 0.5 1.0 2.0 3.0 4.0 6.0 8.0 12.0 32.0 x = 7.611 SD(x) = 9.85 r = 0.987 --- Print Price (in $) 58.79 75.79 114.00 105.95 146.45 425.49 594.00 1074.00 4464.49 y = 784.329 SD(y) = 1420.27 Done X A. It indicates the price for a hard drive with no capacity. It is meaningless and should not be interpreted. B. It indicates the additional capacity in TB for each additional dollar of price. It is meaningful in that it could be interpreted as the cost of the parts common to all drives.
Transcribed Image Text:K Disk drives have been getting larger. Their capacity is now often given in terabytes (TB) where 1 TB = 1000 gigabytes, or about a trillion bytes. A survey of prices for external disk drives found the data shown to the right. For this data, we want to predict Price from Capacity. Complete parts a through i below. Click the icon to view the disk drive data and summary statistics. Disk Drive Data and Summary Statistics Capacity (in TB) 0.5 1.0 2.0 3.0 4.0 6.0 8.0 12.0 32.0 x = 7.611 SD(x) = 9.85 r = 0.987 --- Print Price (in $) 58.79 75.79 114.00 105.95 146.45 425.49 594.00 1074.00 4464.49 y = 784.329 SD(y) = 1420.27 Done X A. It indicates the price for a hard drive with no capacity. It is meaningless and should not be interpreted. B. It indicates the additional capacity in TB for each additional dollar of price. It is meaningful in that it could be interpreted as the cost of the parts common to all drives.
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