Unformatted text preview: Select the most appropriate answer. MATH 2300  18, Spring 2011
“'" Homework # 2 1) In human engineering and product design. it is important to consider the weights of people so that 1) Z S
airplanes or elevators are not overloaded. Based on data from the National Health Survey, the weight for adult males in the U5. follows a bellshaped distribution with a mean weight of 173 pounds and a
standard deviation of 30 pounds Using the z score approach for detecting outliers. which of the
following w‘eights would represent potential outliers In the distribution of U. 5. adult male weights? Weights. 11! pounds, 157 pounds. 281 pounds =0 '0‘ l13):%D , 9.2. ) B) 110 pounds and 281 pounds are both potential outliers. Z 1: '“Q‘l " 11%); ”30 = ' C53
C) 110 pounds and 157 pounds are both potential outliers. ‘
D) None of the three weights are potential outliers. 23 = (2%1 '11?!) T 60 ’13. '19 [“3“
E) 110 pounds. 157 pounds, and 281 pounds are all potential outliers. mom 3
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2) Which of the following numerical summary measures cannot be easily approximated from a box plot? 2) l 2
A) median . B) interquartile range @317“ E) range 3) Which of the following numerical summary measures cannot be negative? 3) g I!
A) mean 4) According to the US. Bureau of the Census, County and City Data Book (1977). the area of New Jersey 4) I 2
Counties, In square miles. ranges from 47 to 319 with Ql=228, median=329 and (33:476. The full data set follows.
Q. Q? 03
47 103 130 192 221 223 234 267 307 312 329 362 365 423 468 476 500 527 569 642 819 In a boxplot, what would be the values to which the whiskers extend A) 144. 348 B) 43, 701 C) 228. 476 mm: 5) The salaries of the top 10 highest paid 050:; in the us. ranged from 249.42 to 68.95 million dollars in 2006 5) Z &
according to Forbes business magazine. These data had 01:71.34, median=191.7 and 03:139.96. The full data setis given be w. Q? Q
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249.42 230.55 139.95 135.53 12267¢rae73 7533 71.94 69.66 5395‘ In a boxplot. what would be the values to which the whiskers extend? @W B) 59 95. 249 42 7 C) ..o4a 203. as D) 49.34, 242.14 l02=12>ﬁ.clLo“II.%I=LosI7_
iSCIQE): 1500812): I02. I'e Q3+I.=scIe2) 2+2 1+ a 2.451% is an emu
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