Year Tornadoes Census 1953 421 158956 1954 550 161884 1955 593 165069 1956 504 168088 1957 856 171187 1958 564 174149 1959 604 177135 1960 616 179979 1961 697 182992 1962 657 185771 1963 464 188483 1964 704 191141 1965 906 193526 1966 585 195576 1967 926 197457 1968 660 199399 1969 608 201385 1970 653 203984 1971 888 206827 1972 741 209284 1973 1102 211357 1974 947 213342 1975 920 215465 1976 835 217563 1977 852 219760 1978 788 222095 1979 852 224567 1980 866 227225 1981 783 229466 1982 1046 231664 1983 931 233792 1984 907 235825 1985 684 237924 1986 764 240133 1987 656 242289 1988 702 244499 1989 856 246819 1990 1133 249623 1991 1132 252981 1992 1298 256514 1993 1176 259919 1994 1082 263126 1995 1235 266278 1996 1173 269394 1997 1148 272647 1998 1449 275854 1999 1340 279040 2000 1075 282224 2001 1215 285318 2002 934 288369 2003 1374 290447 2004 1817 293191 2005 1265 295895 2006 1103 298754 2007 1096 301621 2008 1692 304059 2009 1156 308746 2010 1282 309347 2011 1691 311722 2012 938 314112 2013 907 316498 2014 888 318857 Is the number of tornadoes increasing? In the last homework, data on the number of tornadoes...

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Verified Solution

Question

Basic Math

Year

Tornadoes

Census

1953

421

158956

1954

550

161884

1955

593

165069

1956

504

168088

1957

856

171187

1958

564

174149

1959

604

177135

1960

616

179979

1961

697

182992

1962

657

185771

1963

464

188483

1964

704

191141

1965

906

193526

1966

585

195576

1967

926

197457

1968

660

199399

1969

608

201385

1970

653

203984

1971

888

206827

1972

741

209284

1973

1102

211357

1974

947

213342

1975

920

215465

1976

835

217563

1977

852

219760

1978

788

222095

1979

852

224567

1980

866

227225

1981

783

229466

1982

1046

231664

1983

931

233792

1984

907

235825

1985

684

237924

1986

764

240133

1987

656

242289

1988

702

244499

1989

856

246819

1990

1133

249623

1991

1132

252981

1992

1298

256514

1993

1176

259919

1994

1082

263126

1995

1235

266278

1996

1173

269394

1997

1148

272647

1998

1449

275854

1999

1340

279040

2000

1075

282224

2001

1215

285318

2002

934

288369

2003

1374

290447

2004

1817

293191

2005

1265

295895

2006

1103

298754

2007

1096

301621

2008

1692

304059

2009

1156

308746

2010

1282

309347

2011

1691

311722

2012

938

314112

2013

907

316498

2014

888

318857

Is the number of tornadoes increasing? In thelast homework, data on the number of tornadoes in the United Statesbetween 1953 and 2014 were analyzed to see if there was a lineartrend over time. Some argue that it’s not the number of tornadoesincreasing over time, but rather the probabilityof sighting them because there are more people living in the UnitedStates. Let’s investigate this by including the U.S. census count(in thousands) as an additional explanatory variable (data inEX11-24TWISTER.csv).

Fit one SLR model with year as the predictor, another SLR modelwith census count as the predictor. Write down the two models. Areyear and census count significant, respectively?

Answer & Explanation Solved by verified expert
4.3 Ratings (923 Votes)
Model 1 Year as the predictor and Tornadoes as responseThe regression analysis is done in excel by following stepsStep 1 Write the data values in excel The screenshot is shownbelowStep 2 DATA DataAnalysis Regression OK The screenshot is shownbelowStep 3    See Answer
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