A regression was run to determine if there is a relationship between hours of study per week () and Question Help: Message instructor the final exam scores (1). . Question 14 0/1 pt 0 3 99 The results of the regression were: The following equation represents the relationship between hours of TV watched per day (x) and the y=ax+b number of situps a person can do (y). a=6.922 b=25. 09 y = -0.716x + 26.07 2=0. 724201 r=0. 851 Use this model to predict the number of situps a person who watches 8 hours of TV can do. (to 2 decimal places) Use this to predict the final exam score of a student who studies 9 hours per week, and please round your answer to a whole number. Hint: Help Question Help: Message instructor . Question 15 0/1 pt 0 3 99 Question Help: Message instructor Let y represent the profit (in thousands of dollars) for a certain company & years after 1960. A Question 12 0/1 pt 1 3 99 statistician calculates a linear model A regression was run to determine if there is a relationship between hours of TV watched per day, &, y = 1.55x + 8 and number of sit-ups, y, a person can do in a minute. Use the model to estimate the profit in 1969. Your answer should be in dollars, not thousands of The results of the regression were: dollars. y=ax+b Profit =$ a=-0.963 b=25. 407 Question Help: Message instructor Use this to predict the number of sit-ups a person who watches 10.5 hours of TV can do in a minute. Round to the nearest whole number. 0/1 pt 0 3 99 Question Help: Message instructor Question 13 0/1 pt 1 3 99 A regression was run to determine if there is a relationship between hours of TV watched per day, &, and number of sit-ups, y, a person can do in a minute. The results of the regression were: y=ax+b a=-0.976 b=26.583 Use this to predict the number of sit-ups a person who watches 3 hours of TV can do in a minute. Round to the nearest whole number.16 A group of researchers are working to determine the historic sea levels of the body of water. They are attempting to do this by taking samples around the body of water and in a nearby cave and after analyzing sediment cores from around the body of water to those in the cave. The Climatologist that is working in the cave is trying to determine the age and growth rate of stalactites, to get a more accurate picture of the age of the existing stalactites. The following table contains the estimated age (to the nearest hundred) of the sample and the length of the sample in micrometers. Find a linear model that express length as a function of the age. Round your answers to 2 decimal places Age (nearest hundred) Micrometers 50 529632 60 636035 71 751514 73 773650 74 783072 88 932386 104 1101085 Length = C+ where x is the age in hundreds of years17 Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages () Cost(y) 319 56.47 846 127.98 577 90.01 814 111.82 441 30.33 688 102.44 764 117.32 702 116.26 346 66.98 525 88.25 403 63.39 A student calculates a linear model y = (Please show your answers to two decimal places) Use the model to estimate the cost when number of pages is 321. Cost = $ (Please show your answer to 2 decimal places.) Hint: Help Question Help: () Message instructorStatistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the 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 in each textbook and its cost. The bivariate data is shown below, Number of Pages (3) Cost(y) Number of Pages () Cost(y) 446 50.06 277 53.47 201 38.11 734 89.74 707 77.77 35 65.61 511 54.21 343 47.73 623 66.53 419 54.09 632 75.52 563 82.93 382 1 10.02 463 75.93 823 93.53 434 61.74 458 51.38 933 126.63 253 39.83 380 66.8 Click to Copy-and-Paste Data A student calculates a linear model using technology (Statistics Calculator or Computer) A student calculates a linear model y = C + (Please show your answers to two decimal places) y = (Please show your answers to two decimal places) Use the model to estimate the cost when number of pages is 665. Use the model above to estimate the cost when number of pages is 547 Cost = $ (Use the linear model with yor rounded coefficients and then round your answer to Cost = $ (Please show your answer to 2 decimal places.) 2 decimal places.)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 bivariate data is shown below, Number of Pages (x) Cost(y) 308 34.8 300 35 903 89.3 651 75.1 483 62.3 350 33 781 90.1 370 46 821 82. 1 225 21.5 Click to Copy-and-Paste Data A student calculates a linear model 1 = . (Please show your answers to two decimal places) Use the model above to estimate the cost when number of pages is 603 Cost = $ (Please show your answer to 2 decimal places.)