Here is the DATA LINK: https://www.webassign.net/mintrostat/data/12_39/data2.dat
ID: 3372076 • Letter: H
Question
Here is the DATA LINK: https://www.webassign.net/mintrostat/data/12_39/data2.dat
treetments: a controldensity of the rats Many studies have suggested that there is a link between exercise and healthy bones. Exercise stresses the bones and this causes them to get stronger. One study examined the effect of jumping on the bone density of growing rats. There were three treatments: a control with no jumping, a low-jump condition (the jump height was 30 centimeters), and a high-jump condition (60 centimeters). After 8 weeks of 10 jumps per day, 5 days per week, the bone density of the rats (expressed in mg/cm3) was measured. Here are the data. data2.dat (a) Make a table giving the sample size, mean, and standard deviation for each group of rats. Consider whether or not it is reasonable to pool the variances. Round your answers for x, s, and S to one decimal place.) Group ontrol10 Low jump 10 High jump 10 (b) Run the analysis of variance. Report the F statistic with its degrees of freedom and P-value. What do you conclude? (Round your test statistic to two decimal places and your P-value to three decimal places.) F- Conclusion: There is statistically significant difference between the three treatment means at the a- .05 level aExplanation / Answer
applying one way ANOVA:
F=15.21
p value =0.000
Groups n xbar s sxbar Control 10 593.6 20.2441 6.4017 Lowjump 10 641.1 15.2348 4.8177 Highjump 10 599.2 26.2162 8.2903