QUESTION 14Daphne wonders if poems with more lines tend to have more words or fewer words than poems with fewer lines. She analyzes the poems from Bruce Bennett'schapbook Missing and finds the least-squares regression line and correlation coefficient to be= 5.49x + 2r = 0.8942where x = number of lines and y = number of words. Use this information to complete the following problems.19. a. Legacy is a poem from Bennett's chapbook that is only 2 lines long. Use the least-squares regression line to approximate the number of words in thepoem. Round your answer to the nearest whole amount.WorkAnswerb. Legacy actually has 18 words in it. Determine the residual for this data.WorkAnswer 20. a.What percent of the variation is explained by the lest-squares regression line? Round your answer to the nearest tenth of a percent if necessary.WorkAnswerb. Identify the direction of the data (positive, negative, or none) and enter your answer below.Answer

Here use basic of regression line and correlation

Answered: 19. a. Legacy is a poem from Bennett's…

MATLAB: An Introduction with Applications

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A researcher want to know if there is a relationship between sleep and anxiety. The researcher randomly selected n = 5 participants and asked each to rate their sleep quality and anxiety level on a scale of 1 to 5. The data are below: Sleep X Anxiety Y 2 2 3 3 2 2 4 2 5 2 Calculate the Sum of Squares for X (SSX)
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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19. a. Legacy is a poem from Bennett's chapbook that is only 2 lines long. Use the least-squares regression line to approximate the number of words in the poem. Round your answer to the nearest whole amount. Work Answer