Kudzu is a plant that was imported to the United States from Japan and now cover

Question

Kudzu is a plant that was imported to the United States from Japan and now covers over seven million acres in the South. The plant contains chemicals called isoflavones that have been shown to have beneficial effects on bones. One study used three groups of rats to compare a control group with rats that were fed either a low dose or a high dose of isoflavones from kudzu. One of the outcomes examined was the bone mineral density in the femur (in grams per square centimeter). Here are the data. (a) Use numerical methods to describe the data. (Round your answers to four decimal places.) (b) Examine the assumptions necessary for ANOVA. Summarize your findings. This answer has not been graded yet. (c) Run the ANOVA and report the results. State the F statistic and the degrees of freedom. (Round your answers to two decimal places.) F = DFG = DFE = Give the P-value. P > 0.100 0.050

Explanation / Answer

from above

b) assumption regarding normality of population, equal variation , and independence is verified

c)F=7.7080

DFG =2

DFE=42

p vlaue <0.01

Groups n xbar s control 15 0.2189 0.0116 low dose 15 0.2162 0.0114 High dose 15 0.2353 0.0190 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 0.003222 2 0.0016 7.7080 0.0014 3.2199 Within Groups 0.008777 42 0.0002 Total 0.011999 44

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