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Example 159.2tech

 

Example 159.2 (Tech): Nutrition researchers are interested in the effects of two antioxidant supplements (A and B) on the longevity of rats. The response variable, lifespan, is measured in years. A group of 36 rats were divided evenly and randomly into nine groups. The supplements A and B were provided at three different dose levels (high, low, and none). Use the various SPSS outputs below to answer the questions that follow:

 

No A

Low A

High A

No B

1.9, 2.1, 2.0, 1.9

2.0, 2.1, 2.3, 2.4

2.6, 2.5, 2.6, 2.6

Low B

2.2, 2.2, 2.4, 2.6

2.9, 3.0, 3.0, 3.1

2.9, 3.0, 3.1, 3.1

High B

2.9, 2.8, 2.6, 2.7

3.1, 3.2, 3.0, 3.1

3.4, 3.3, 3.5, 3.3

 

 

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