HYPOTHESIS TESTING Climate change is a topic of both academic and political interest. The National Climatic Data Center has recorded temperature data since 1800. You can explore their data at: http://data.giss.nasa.gov/gistemp/ The following chart compares the average Land-Surface Air Temperatures for year since 1961 to the 20th century average Land-Surface Air Temperature. Year Temp Change, °C 1961 0.075 1962 0.038 1963 0.079 1964 -0.207 1965 -0.111 1966 -0.031 1967 -0.005 1968 -0.044 1969 0.076 1970 0.028 1971 -0.105 1972 0.001 1973 0.14 1974 -0.079 1975 -0.048 1976 -0.161 1977 0.125 1978 0.011 1979 0.083 1980 0.179 1981 0.261 1982 0.045 1983 0.257 1984 0.088 1985 0.046 1986 0.126 1987 0.262 1988 0.312 1989 0.19 1990 0.373 1991 0.346 1992 0.125 1993 0.133 1994 0.233 1995 0.37 1996 0.288 1997 0.393 1998 0.566 1999 0.317 2000 0.328 2001 0.477 2002 0.556 2003 0.547 2004 0.481 2005 0.623 2006 0.545 2007 0.57 2008 0.437 2009 0.57 At the a = 0.05 significance level, conduct a hypothesis test for the claim that the mean Land-Surface Air Temperature has not changed (m = 0). Be sure to include your hypotheses, the critical value(s), the standardized test statistic, and your initial and final conclusions.

HYPOTHESIS TESTING

Climate change is a topic of both academic and political interest. The National Climatic Data Center has recorded temperature data since 1800. You can explore their data at: http://data.giss.nasa.gov/gistemp/

The following chart compares the average Land-Surface Air Temperatures for year since 1961 to the 20^th century average Land-Surface Air Temperature.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Year	Temp Change, °C
1961	0.075
1962	0.038
1963	0.079
1964	-0.207
1965	-0.111
1966	-0.031
1967	-0.005
1968	-0.044
1969	0.076
1970	0.028
1971	-0.105
1972	0.001
1973	0.14
1974	-0.079
1975	-0.048
1976	-0.161
1977	0.125
1978	0.011
1979	0.083
1980	0.179
1981	0.261
1982	0.045
1983	0.257
1984	0.088
1985	0.046
1986	0.126
1987	0.262
1988	0.312
1989	0.19
1990	0.373
1991	0.346
1992	0.125
1993	0.133
1994	0.233
1995	0.37
1996	0.288
1997	0.393
1998	0.566
1999	0.317
2000	0.328
2001	0.477
2002	0.556
2003	0.547
2004	0.481
2005	0.623
2006	0.545
2007	0.57
2008	0.437
2009	0.57

At the a = 0.05 significance level, conduct a hypothesis test for the claim that the mean Land-Surface Air Temperature has not changed (m = 0). Be sure to include your hypotheses, the critical value(s), the standardized test statistic, and your initial and final conclusions.

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