(a) For each of the five years, find the difference in number of hot dogs eaten between Joey and Takeru. For example, in 2009, the difference is 68 - 64 = 4. Since it is important to always subtract the same way (in this case, Joey's value minus Takeru's value), some of the differences will be negative. Year 2009 2008 2007 2006 2005 Hint Joey Chestnut X Incorrect. 68 59 66 52 e Textbook and Media 32 Takeru Kobayashi 64 59 63 54 49 Difference 4 ... 3 -2 F -2

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Please read the passage of Hotdog rivals and then answer these questions carefully to get the correct answer.  When I try those questions, most questions got correct answer while few questions that I got wrong answer.

Your answer is partially correct.
(a) For each of the five years, find the difference in number of hot dogs eaten between Joey and Takeru. For example, in 2009, the
difference is 68 - 64 = 4. Since it is important to always subtract the same way (in this case, Joey's value minus Takeru's value),
some of the differences will be negative.
Year
2009
2008
2007
2006
2005
Hint
* Incorrect.
Joey Chestnut
68
59
mean = 56.6
66
eTextbook and Media
52
32
Takeru
Kobayashi
Round your answers to one decimal place.
standard deviation i 11.3
64
59
63
54
49
Difference
4
0
3
(b) Use StatKey or other technology to find the mean and the standard deviation of the differences.
-2
-2
Transcribed Image Text:Your answer is partially correct. (a) For each of the five years, find the difference in number of hot dogs eaten between Joey and Takeru. For example, in 2009, the difference is 68 - 64 = 4. Since it is important to always subtract the same way (in this case, Joey's value minus Takeru's value), some of the differences will be negative. Year 2009 2008 2007 2006 2005 Hint * Incorrect. Joey Chestnut 68 59 mean = 56.6 66 eTextbook and Media 52 32 Takeru Kobayashi Round your answers to one decimal place. standard deviation i 11.3 64 59 63 54 49 Difference 4 0 3 (b) Use StatKey or other technology to find the mean and the standard deviation of the differences. -2 -2
The Hot Dog Eating Rivalry: Matched Pairs
Every year from 2002 to 2014, either Joey Chestnut of California or Takeru Kobayashi of Japan won the contest. In five of those years,
both men competed and the results of the rivalry are shown in the table below. (After the tie in 2008, Joey Chestnut won in an
overtime.) Because the conditions of the year matter, this is a matched pairs situation, with the two men going against each other each
year. In a matched pairs situation, we use the summary statistics of the differences between the pairs of values.
Click here to access StatKey.
Year
2009
2008
2007
2006
2005
Joey Chestnut
68
59
66
52
32
Takeru
Kobayashi
Hot dog eating rivalry
64
59
63
54
49
Transcribed Image Text:The Hot Dog Eating Rivalry: Matched Pairs Every year from 2002 to 2014, either Joey Chestnut of California or Takeru Kobayashi of Japan won the contest. In five of those years, both men competed and the results of the rivalry are shown in the table below. (After the tie in 2008, Joey Chestnut won in an overtime.) Because the conditions of the year matter, this is a matched pairs situation, with the two men going against each other each year. In a matched pairs situation, we use the summary statistics of the differences between the pairs of values. Click here to access StatKey. Year 2009 2008 2007 2006 2005 Joey Chestnut 68 59 66 52 32 Takeru Kobayashi Hot dog eating rivalry 64 59 63 54 49
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