The following table gives theUS. national debt for selected years from 1900 to 2013.U.S. Debt(s billons)U.S. Debt(S bions)YearYear1900199032331910199652251920242000567419301620057933194043200011,9571945259201013,5291955273201115,4761965314201216,0671975533201316,85619831823(4) Using a function of the form yabx, witha in 1900 and y equal to the national debt in bilions, model the data. (Raund your coefficients toe four decmal pleces)(b) Use the model to predict the debt in 2016. (Round your answer to the nearest billon.)billion(c) Predict the year in which the debt will be $71 trillion (S71,000 billion).Need Help?Pead

(a) The linear regression is conducted in R software; (a) The estimated linear regression is, y⏞ =…

The following table gives theuS. national debt for selected years from 1900 to 2013 US. Debt (S Diens) US. Debt (S bilons) Year Year 1900 1. 1990 3233 1910 1996 5225 24 2000 5674 1930 16 200s 7933 1940 43 2000 11,957 1945 259 2010 13,529 1955 273 2011 15,476 1965 314 16,067 2012 1975 533 2013 16,856 19e5 1823 (a) Using a function of the form ya , with a in 1900 and y equal to the national debt in bons, model the data (Rund your coeficients te four decmal places) (b) Use the model to predict the debt in 2016. (Round your answer to the nearest bion.) bilion (c) Predict the year in which the debt wil be $71 trilon (S71,000 billon).

The following table gives theuS. national debt for selected years from 1900 to 2013 US. Debt (S Diens) US. Debt (S bilons) Year Year 1900 1. 1990 3233 1910 1996 5225 24 2000 5674 1930 16 200s 7933 1940 43 2000 11,957 1945 259 2010 13,529 1955 273 2011 15,476 1965 314 16,067 2012 1975 533 2013 16,856 19e5 1823 (a) Using a function of the form ya , with a in 1900 and y equal to the national debt in bons, model the data (Rund your coeficients te four decmal places) (b) Use the model to predict the debt in 2016. (Round your answer to the nearest bion.) bilion (c) Predict the year in which the debt wil be $71 trilon (S71,000 billon).

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

9. It needs 8 persons to dig an irrigation canal in 15 days. How many persons are needed to do the job in 5 days? Ans. 24 10. If 72% of a certain quantity is 162, find the quantity. Ans. 225 11. If 16% less than a certain quantity is 441, find the quantity. Ans. 525
32.0 30.0 28.0- 26.0 24.0 22.0 20.0 18.0 16.0 14.0 12.0 10.0 1909 1919 1929 1939 1949 1959 1969 1979 Year Number of Births Per Thousand People
Date DJIA S&P 500 January 6 12,360 1,278 January 13 12,422 1,289 January 20 12,720 1,315 January 27 12,660 1,316 February 3 12,862 1,345 February 10 12,801 1,343 February 17 12,950 1,362 February 24 12,983 1,366 March 2 12,978 1,370 March 9 12,922 1,371 March 16 13,233 1,404 March 23 13,081 1,397 March 30 13,212 1,408 April 5 13,060 1,398 April 13 12,850 1,370
4. The volume of the fish tank needs to be tripled. 10 in 3 in 18 in What scale factor should be applied to the dimensions to produce a fish tank with three times the volume? O 3 Search 2 3 QW E R ck A
3) What are retained earnings? Select an answer: the amount of money that a company earns as profit profits that are distributed to the shareholders as dividends profits that are put back into the company revenue that is used to pay taxes
The table below contains real data for the first two decades of AIDS reporting. Year # AIDS cases diagnosed # AIDS deaths Pre-1981 91 29 1981 319 121 1982 1,170 453 1983 3,076 1,482 1984 6,240 3,466 1985 11,776 6,878 1986 19,032 11,987 1987 28,564 16,162 1988 35,447 20,868 1989 42,674 27,591 1990 48,634 31,335 1991 59,660 36,560 1992 78,530 41,055 1993 78,834 44,730 1994 71,874 49,095 1995 68,505 49,456 1996 59,347 38,510 1997 47,149 20,736 1998 38,393 19,005 1999 25,174 18,454 2000 25,522 17,347 2001 25,643 17,402 2002 26,464 16,371 Total 802,118 489,093 Graph "year" versus "# AIDS cases diagnosed" (plot the scatter plot). Do not include pre-1981 data. Perform linear regression. Write the equations. (Round your answers to the nearest whole number. Round r to four decimal places.) (a) Linear Equation: 9 - (b) a = (c) b= (d) (e) n-
Date DJIA S&P 500 January 6 12,360 1,278 January 13 12,422 1,289 January 20 12,720 1,315 January 27 12,660 1,316 February 3 12,862 1,345 February 10 12,801 1,343 February 17 12,950 1,362 February 24 12,983 1,366 March 2 12,978 1,370 March 9 12,922 1,371 March 16 13,233 1,404 March 23 13,081 1,397 March 30 13,212 1,408 April 5 13,060 1,398 April 13 12,850 1,370
1937 -3.8 1938 3.3 1939 4.6 1940 4.5 1941 5.4 1942 2.9 1943 -0.6 1944 4.1 1945 4.8 1946 4.4 1947 0.5 1948 3.4 1949 -1.4 1950 -6.3 1951 2.5 1952 1.7 1953 5.9 1954 0.5 1955 3.6 1956 3 1957 -1.1 1958 6 1959 3.8 1960 2.7 1961 4.9 1962 2.9 1963 0.7 1964 4.5 1965 2.1 1966 2.9 1967 4.5 1968 3.8 1969 -2.9 1970 3.1 1971 2.2 1972 0.7 1973 2.3 1974 2.6 1975 2.4 1976 4.3 1977 2.3 1978 3.5 1979 0.2 1980 0.5 1981 5.5 1982 1.9 1983 6.3 1984 4.4 1985 1.5 1986 6.1 1987 4.4 1988 3.5 1989 3.5 1990 4.4 1991 1.6 1992 5.8 1993 -0.4 1994 6.3 1995 4.5 1996 2.9 1997 3.9 1998 4.5 1999 5 2000 3.5 2001 5.1 2002 4.2 2003 6.4 2004 4.1 2005 3.7 2006 6.3 2007 3 2008 2.8 2009 2.1 2010 7.2 2011 4.2 2012 3.6 2013 2.8 2014 4.4 2015 5.6 2016 4.7 2017 1.9 2018 5.4 2019 5.8 Find question 12
Walmart predicted the following end-of-year earnings from 2003 - 2012 in billions of dollars (9.5, 9.8, 10.2, 10.7, 10.5, 11.0, 12.1, 14.7, 16.3, 18.7). Their actual end-of- year earnings for the same years are as follows: 9.1, 9.2, 10.6, 10.3, 9.9, 10.4, 11.6, 11.8, 13.1, 22.7). In testing the claim that the mean predicted value is the same as the mean actual value, which p-value is correct? 0.228 0.456 0.779 0.05 4
graph each polar equation 15. 0 = 3 오 4 00 19. r = 4seco ㅈ 7x 7π 2 4x 3 3 4T 3 | 2 Зл 미국 Зл 3 3 5개 3 3 5개 3 프랑 능 6 26 1z 6 。 ㅇ
45.7-3.32=
7. The populations of some predatory animals vary periodically. Assume that the population of foxes in a forest varies with time. When records started being kept, there were only 180 foxes, the minimum, and 6 years passed before they reached the minimum again. The maximum number of foxes was 1000. Complete each of the following 2 activities (A - B) for Question 7. 7A. Write the reflected cosine equation that would fit this situation.