STAT 208. ASSIGNMENT NO. 6
Due on Thursday, Feb 27, 1997

Review Chapters 11-13.

Do the following problems in the text:

13.10

13.11

13.13 with data here. (State the hypotheses, compute the differences and test statistic. Show your work.)

13.19 with data here. (State the hypotheses, compute the ranks and the test statistic. Show your work.)

13.22 with data here

Additional Problem: The median number of part-time employees at fast food restaurants in a particular city was known to be 15 last year. City officials think the use of part-time employees may be increasing. A sample of 9 fast food restaurants showed that there were more than 15 employees at 7 of the restaurants, one restaurant had exactly 15 employees, and one had fewer than 15 employees. Test at alpha = 0.05 whether it can be concluded that there has been an increase in the median number of part-time employees.