ts: Following are weights in pounds for random samples of 16  newborn baby boys and baby girls born in Denver in  2011 . Box plots indicate that the samples come from populations that are approximately normal. Let  μ1  denote the mean weight of boys. Can you conclude that the mean weight of boys is less than the mean weight of girls? Use the  =α0.05  level and the  P -value method with the TI-84 Plus calculator. do we recject  is there enough evidence    Boys 7.8 7.6 6.4 7.7 7.8 7.4 5.9 6.6 6.9 6.9 7.5 6.3 6.4 6.4 6.4 7.7                       Girls 7.0 6.7 8.5 7.2 6.7 7.4 8.1 7.7 6.9 8.2 8.2 7.7 8.2 7.5 7.2 8.2

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ts: Following are weights in pounds for random samples of

16

 newborn baby boys and baby girls born in Denver in 

2011

. Box plots indicate that the samples come from populations that are approximately normal. Let 

μ1

 denote the mean weight of boys. Can you conclude that the mean weight of boys is less than the mean weight of girls? Use the 

=α0.05

 level and the 

P

-value method with the TI-84 Plus calculator.

do we recject 

is there enough evidence 

 

Boys
7.8
7.6
6.4
7.7
7.8
7.4
5.9
6.6
6.9
6.9
7.5
6.3
6.4
6.4
6.4
7.7
   
                 
Girls
7.0
6.7
8.5
7.2
6.7
7.4
8.1
7.7
6.9
8.2
8.2
7.7
8.2
7.5
7.2
8.2
   
               
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