# Question: Answer the parts of exercise 1 using experience in place

Answer the parts of exercise 1 using experience in place of annual salary.

a.* Draw box plots to compare these three groups. Comment on what you see.

b.* Find the average for each training level, and comment.

c.* Find the between-sample and the within-sample variabilities and their respective degrees of freedom.

d. Find the F statistic and its numbers of degrees of freedom.

e. Perform the F test at level 0.05 and report the results.

f. Report the results of the least-significant-difference test, if appropriate.

g. Summarize what you have learned about the database from this problem.

a.* Draw box plots to compare these three groups. Comment on what you see.

b.* Find the average for each training level, and comment.

c.* Find the between-sample and the within-sample variabilities and their respective degrees of freedom.

d. Find the F statistic and its numbers of degrees of freedom.

e. Perform the F test at level 0.05 and report the results.

f. Report the results of the least-significant-difference test, if appropriate.

g. Summarize what you have learned about the database from this problem.

## Relevant Questions

a. What is a nonparametric statistical method? b. For the nonparametric approach based on counts, what is being counted? What probability distribution is used to make the decision? c. For the nonparametric approach based on ...a. What happens if there is an outlier in one of the samples in a test of two unpaired samples? For each case (very large or very small outlier), say what the rank of the outlier would be. b. Which statistical method ...a. Can the sign test be used with quantitative data? Why or why not? b. Can the sign test be used with ordinal data? Why or why not? c. Can the sign test be used with nominal data? Why or why not? The number of items returned for each of the past 9 days was 13, 8, 36, 18, 6, 4, 39, 47, and 21. Test to see if the median number returned is significantly different from 40 and find the p-value (as either p > 0.05, p < ...Use the data sets from problems 2 and 3, on profit as a percent of sales for building materials firms and for aerospace firms. a. Find the median profit for each industry group and compare them. b. Combine the two data sets ...Post your question