Res/342 Week 3 E Text

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* E-Text Exercises Week Three
RES/342
December 19, 2011

11.24
In a bumper test, tethersome types of autos were deliberately crashed into a barrier at 5 mph, and the
resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with
the results shown below. Research head word: Are the mean crash damages the same for these three vehicles?

Crash Damage ($)

Goliath    varmint   Weasel
1,600      1,290      1,090
   760      1,400      2,100
   880      1,390      1,830
1,950      1,850      1,250
1,220        950      1,920

Hypotheses:
H0: ?1=?2=?3
Ha:At least one of the means is/ be different

Reject the null guesswork if the p-value is less than 0.05.

Goliath| Varmint| Weasel|
1600| 1290| 1090|
760| 1400| 2100|
880| 1390| 1830|
1950| 1850| 1250|
1220| 950| 1920|

One factor ANOVA| | | | | | |
| | | | | | | |
| Mean| n| Std. Dev|  | | | |
1432| 1,282.0 | 5| 496.



31 | Goliath| | | |
1432| 1,376.0 | 5| 321.84 | Varmint| | | |
1432| 1,638.0 | 5| 441.78 | Weasel| | | |
| 1,432.0 | 15| 424.32 | agree| | | |
| | | | | | | |
ANOVA table| | | | | | | |
Source| SS| df| MS| F| p-value| | |
manipulation| 340,360.00 | 2| 170,180.000 | 0.94| .4188| | |
Error| 2,180,280.00 | 12| 181,690.000 | | | | |
Total| 2,520,640.00 | 14|  |  |  | | |

accord to the ANOVA above, the test statistic is 0.94 and the p-value is 0.4188. Since the p-value is not less than 0.05, the null hypothesis is not rejected and it is concluded the 3 means ar significantly equal.If you want to get a full essay, put up it on our website: Ordercustompaper.com



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