# Question

Another characteristic compared in the hip bone density study discussed in Problem 13 was Maximum Nottingham leg power, in watts. On the WeissStats CD, we provide the leg-power data for the three groups, based on the results obtained by the researchers.

Use the technology of your choice to do the following tasks.

a. Obtain individual normal probability plots and the standard deviations of the samples.

b. Perform a residual analysis.

c. Use your results from parts (a) and (b) to decide whether conducting a one-way ANOVA test on the data is reasonable. If so, also do parts (d)–(f).

d. Use a one-way ANOVA test to decide, at the 5% significance level, whether the data provide sufficient evidence to conclude that a difference exists among the means of the populations from which the samples were taken.

e. Interpret your results from part (d).

Use the technology of your choice to do the following tasks.

a. Obtain individual normal probability plots and the standard deviations of the samples.

b. Perform a residual analysis.

c. Use your results from parts (a) and (b) to decide whether conducting a one-way ANOVA test on the data is reasonable. If so, also do parts (d)–(f).

d. Use a one-way ANOVA test to decide, at the 5% significance level, whether the data provide sufficient evidence to conclude that a difference exists among the means of the populations from which the samples were taken.

e. Interpret your results from part (d).

## Answer to relevant Questions

Census Bureau collects information on incomes of employed persons and publishes the results in Historical Income Tables. Independent simple random samples of 100 employed persons in each of four age groups gave the data on ...In one-way ANOVA, a. List and interpret the three sums of squares. b. State the one-way ANOVA identity and interpret its meaning with regard to partitioning the total variation among all the data. Ha: ρ > 0 Specify an alternative hypothesis for a correlation t-test. For each exercise, decide, at the 10% significance level, whether the data provide sufficient evidence to reject the null hypothesis in favor of the ...Following are the data on age of fetuses and length of crown-rump from Exercise. At the 10% significance level, do the data provide sufficient evidence to conclude that age and crown-rump length are linearly correlated? ...The data from Exercise for shell thickness and concentration of PCBs of 60 Anacapa pelican eggs are on the WeissStats CD. Do the data provide sufficient evidence to conclude that concentration of PCBs and shell thickness are ...Post your question

0