A regression was run to determine if there is a relationship between hours of study per week (an) and the final exam scores (y), The results of the regression were: y:ax+b 3:6 922 5 . 99 . 724281 . 351 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: 8 Message instructor 0 Question12 80/1 pt '03 899 A regression was run to determine if there is a relationship between hours of TV watched per day, at, and number of sit-ups, y, a person can do in a minute. The results of the regression were: y=ax+b a=9.963 b=25.497 Use this to predict the number of sit-ups a person who Watches 105 hours of TV can do in a minute. Round to the nearest whole number. Question Help: 2 Message instructor 0 Questian13 80/1 pt '03 399 A regression was run to determine if there is a relationship between hours of TV watched per day, m, 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. Question Help: 8 Message instructor 0 Question 14 80/1 pt '0 3 Q 99 The following equation represents the relationship between hours of TV watched per day (x) and the number of situps a person can do (9). 9= 0.7163: + 1607 Use this model to predict the number of situps a person who watches 8 hours of TV can do. (to 2 decimal places) Question Help: Message instructor 0 Question 15 80/1 pt '0 3 2 99 Let 37 represent the profit (in thousands of dollars) for a certain company a: years after 1960. A statistician calculates a linear model 9=1.55:c+8 Use the model to estimate the profit in 1969, Your answer should be in dollars, not thousands of dollars. Profit =5 Question Help: 2! Message instructor W 80/1 pt '03 399 l e A group of researchers are working to determine the historic sea levels of the body f water, They are l ?_ Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the attempting to do this by taking samples around the body of water and in a nearby cave and after number of pages in each textbook and its cost The bivariate data are shown below 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 Number of Pages (1) Cost(y) stalactites, to get a more accurate picture of the age of the existing stalactites. The following table 319 5647 contains the estimated age (to the nearest hundred) of the sample and the length of the sample in . . . . 846 1 27' 98 micrometers. Find a linear model that express length as a function of the age. 577 9001 Round your answers to 2 decimal places 814 \"1'32 441 8033 Age (nearest hundred) Micrometers 688 10144 50 529632 764 11732 60 636035 702 11616 71 751514 346 66198 73 773650 525 88125 74 783072 403 63 e 39 88 932386 1 04 1 101 085 _ _ A student calculates a linear model Length = m + where x is the age in hundreds of years _ y = at + . (Please show your answers to two decimal places) Question Help: 8 Message instructor Use the model to estimate the cost when number of pages is 321 , Cost = 5 (Please show your answer to 2 decimal places.) 0 Question 17 80/1 pt '0 3 B99 ' l Statistics students in Oxnard College sampled 1 1 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: 9 number of pages In each textbook and Its cost' The bivanate data is shown below, Number of Pages (av) Cost(y) Number of Pages (9:) COSHM 44-6 50 06 Z77 5147 201 38:11 734 8974 707 77.77 351 6561 511 5421 343 4773 623 66.53 419 5409 632 75.52 563 8293 532 110,02 463 75.93 823 93.53 434 6174 458 51.38 933 126'63 253 3933 380 66'3 Click to Copy-and-Paste Data A student calculates a linear model using technology (Statistics Calculator or Computer) A student calculates a linear model 3] = as + . (Please show your answers to two decimal places) y = 9; + . (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 = 5 (Use the linear model with yor rounded coefficients and then round your answer to _ . Cost 5 (Please show your answer to 2 decimal places') 2 decimal places.) . 2 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 (9:) Cost(y) 308 34.3 300 35 903 39.3 651 75.1 483 62.3 350 33 781 90.1 370 46 821 82.1 225 2 I .5 Click to Copy-and-Paste Data A student calculates a linear model 5: = :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.)