a. Use regression to find an exponential equation to model the data. Round the numbers in your equation to 3 decimal places. y = ab with a = b = b. Use your equation to predict the expenditure in 2018. Round to the nearest billion dollars.
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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.Suppose the table below gives the average tuition and fees at 2-year and 4-year state schools in a particular state. Values are adjusted to 2019 dollars. Academic Year 4-year state school 2-year state school 2005-06 $5,904 $2,661 2006-07 $6,066 $2,539 2007-08 $6,289 $2,604 2008-09 $7,222 $2,901 2009-10 $7,738 $3,065 2010-11 $8,035 $3,117 2011-12 $8,154 $3,108 2012-13 $8,497 $3,075 2013-14 $8,578 $3,025 2014-15 $9,390 $3,326 2015-16 $10,004 $3,504 2016-17 $10,474 $3,663 2017-18 $10,789 $3,830 2018-19 $10,874 $3,859 2019-20 $10,900 $3,907 Here is a graph of the information from the table. a. What is the absolute change in tuition and fees at this state's four-year institutions from 2005-06 to 2019-20? b. What is the relative change in tuition and fees at this state's four-year institutions from 2005-06 to 2019-20? Round to the nearest whole percentage…The annual revenue of Amazon is given in the table below (sourceLinks to an external site.). Year Amazon Annual Revenue(Billions of US dollars) 2020 386.064 2019 280.522 2018 232.887 2017 177.866 2016 135.987 2015 107.006 2014 88.988 2013 74.452 2012 61.093 2011 48.077 2010 34.204 In what year will the estimated revenue of Amazon be 1,357 billion US dollars? Note: I am asking for the year, not the number of years since 2010. This may happen between two years. Round to the nearest year.
- The table below shows total expenditures for colleges and universities in millions of dollars. All data are in current dollars. Year 1970 1980 1990 2000 2010 Expenditures 21,063 56,914 134,666 236,754 462,100 Make a table that shows the absolute change in expenditures over each 10-year period. Period Increase ($ millions) 1970-1980 1980-1990 1990-2000 2000-2010Import Illinois.xls as a table. Using logical indexing to select the years with more than 2800 cases of Diabetes. Then plot all of the data on the same axis. F1 fx Homicide B C E Year Accidents Cancer Diabetes Heart Disease Homicide| Suicide 1999 4125 25024 3004 33387 1023 1020 3 2000 4041 25365 2995 31844 991 1003 4. 2001 4077 24778 3092 30990 1087 1139 2002 4222 24737 3011 30821 1016 1145 2003 3942 24464 3044 29816 966 1011 7. 2004 4133 24289 3069 28284 871 1028 8. 2005 4182 24250 3034 28226 866 1086 9. 2006 4451 24084 2795 27007 865 1010 10 2007 4367 24115 2851 25813 863 1108 11 2008 4218 24300 2846 26078 872 1198 12 2009 3961 24185 2741 24931 881 1177 13 2010 3997 24070 2507 24959 783 1178 14 2011 4166 24007 2693 24987 812 1226 15 2012 4488 24562 2706 24667 832 1292 16 2013 4511 24491 2798 17 24839 792 1321 2014 4644 24501 2712 18 25024 792 1398 2015 4850 24713 2817 25652 19 863 1363 20 21The total amount of consumer credit has been increasing steadily in recent years. The following table gives the total outstanding consumer credit (in billions of dollars). Answer parts (a) through (e) below. 6. Year Consumer Consumer Year Credit Credit 2003 2250.5 2008 2557.5 2004 2319.8 2009 2648.1 2005 2415.0 2010 2757.0 2006 2540.9 2011 2928.3 2007 2597.1 2012 3097.2 a. Find an equation for the least squares line, letting x equal the number of years since 2001. The equation is Y = X+ (Use integers or decimals for any numbers in the equation. Round to two decimal places as needed.) b. Based on the answer to part (a), at approximately what rate is consumer credit growing per year? The consumer credit is growing about $ billion per year. (Round to two decimal places as needed.) c. Use the result from part (a) to predict the amount of consumer credit in the year 2016. The amount of consumer credit in the year 2016 will be $ billion. (Round to the nearest whole number.) d. If this trend…
- 3:27 4G 11% K The accompanying data represent health care expenditures per capita (per person) as a percentage of the gross domestic product (GDP) of a country from 2009 to 2015. Gross domestic product is the total value of all goods and services created during the course of the year. Complete parts (a) through (c) below. Click the icon to view the data table. (a) Construct a time-series plot that a politician would create to support the position that health care expenditures are increasing and must be slowed. Choose the correct graph below. O A. 25,000- O A. Percent 18- 0+ 2009 15- Year 12+ 2009 Year 2015 Q 2015 ||| O B. = 17,000+ 10,000+ 2009 B. Year 2015 Q Year (b) Construct a time-series plot that the health care industry would create to refute the opinion of the politician. Choose the correct graph below. Q O C. 18+ 12+ 2009 O VO) 1 Year C. 17,000+ 17,000+ w r 10,000+ 10,000+ 2009 2015 2009 2015 2015 Year OA. Values can be left out of the graph so that the graph supports the…TABLE 1.5 The amount of money expended in fiscal year 2009 by the U.S. Department of Defense in various categories is shown in Table 1.5.5 Construct both a pie chart and a bar chart to describe the data. Compare the two forms of presentation. Expenses by Category Category Amount ($ billions) Military personnel 147.3 Operation and maintenance 259.3 Procurement 129.2 Research and development 79.0 Military construction 17.6 Other 4.3 Total 636.7 Source: The World Almanac and Book of Facts 2011Park City, Utah was settled as a mining community in 1870 and experienced growth until the late 1950s when the price of silver dropped. In the past 40 years, Park City has experienced new growth as a thriving ski resort. The population data for selected years between 1900 and 2009 are given below. Park City, Utah Year 1900 1930 1940 1950 1970 1980 1990 2000 2009 Population 3759 4281 3739 2254 1193 2823 4468 7341 11983 (a) What behavior of a scatter plot of the data indicates that a cubic model is appropriate? O a change in concavity and neither a relative maximum nor a relative minimum O a change in concavity and both a relative maximum and a relative minimum O no change in concavity and an absolute minimum O no change in concavity and an absolute maximum (b) Align the input so that t = 0 in 1900. Find a cubic model for the data. (Round all numerical values to three decimal places.) p(t) = (c) Numerically estimate the derivative of the model in 2007 to the nearest hundred. p'(107) =…