How do I describe what is going on with this boxplot?
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- Is carbon dating? Why does it work? Give an example in which carbon dating would be useful.Review 1/2/3/4/51. The number of pounds of steam used per month by a chemical plant is thought to be related to the average ambient temperature (in degF) for that month. The past year's usage and temperature are shown in the following table: Month Temp. Usage/1000 Month Temp. Usage/1000 Jan. 21 185.79 July 68 621.55 Feb. 24 214.47 Aug. 74 675.06 Mar. 32 288.03 Sept. 62 562.03 Apr. 47 424.84 Oct. 50 452.93 May 50 454.58 Nov. 41 369.95 June 59 539.03 Dec. 30 273.98 (a) Assuming that a simple linear regression model is appropriate, fit the regression model relating steam usage (y) to the average temperature (x). (b) What is the estimate of expected steam usage when the average temperature is 55F?
- Consumption of monthly electric power in million of kwh for street lighting in a big city during 2013 - 17 is given below: Year Jan Feb, Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. 2013 318 281 278 250 231 216 223 245 269 302 325 347 2014 342 309 299 268 249 236 242 262 288 321 342 364 2015 367 328 320 287 269 251 259 284 309 345 367 394 2016 392 349 342 311 290 273 282 305 328 364 389 417 2017 420 378 370 334 314 296 305 330 356 396 422 452 Find out the seasonal variation by the method of monthly averages.Foreign fish production. Overfishing and pollution of U.S. coastal waters have resulted in an increased dependence by the United States on the fishing grounds of other coun- tries. The table below describes the annual fish catch (in thousands of metric tons) in all fishing areas of Peru and Chile for the years 2000 to 2008. Year 2000 2001 2002 2003 2004 2005 2006 2007 2008 Chile 4,692 4,363 4,817 4,176 5,584 5,029 4,971 4,636 4,398 Peru 10,665 7,990 8,775 6,100 9,627 9,416 7,046 7,250 7,406 Source: United States Census Bureau. a. Compute an exponentially smoothed series for both Chile and Peru, using a smoothing coefficient of w= .5. b. Plot both actual series and both smoothed series on the same graph. Describe the differences in variation of catches over time between the two countries. For exam- ple, do they move up and down together over time?
