# Question: Consider the following two sets of rankings for six items Note

Consider the following two sets of rankings for six items.

Note that in the first case the rankings are identical, whereas in the second case the rankings are exactly opposite. What value should you expect for the Spearman rank-correlation coefficient for each of these cases? Explain. Calculate the rank-correlation coefficient for each case.

Note that in the first case the rankings are identical, whereas in the second case the rankings are exactly opposite. What value should you expect for the Spearman rank-correlation coefficient for each of these cases? Explain. Calculate the rank-correlation coefficient for each case.

## Relevant Questions

The following data show the rankings of 11 states based on expenditure per student (ranked 1 highest to 11 lowest) and student-teacher ratio (ranked 1 lowest to 11 highest). a. What is the rank correlation between ...Due to a recent decline in the housing market, the national median sales price for single-family homes is $180,000 (The National Association of Realtors, January 2009). Assume that the following data were obtained from ...Course evaluation ratings for four college instructors are shown in the following table. Use α = .05 and test for a significant difference among the rating for these instructors. What is your conclusion? A process that is in control has a mean of μ = 12.5 and a standard deviation of σ = .8. a. Construct the x-bar control chart for this process if samples of size 4 are to be used. b. Repeat part (a) for samples of size 8 ...Twenty-five samples of size 5 resulted in = 5.42 and = 2.0. Compute control limits for the and R charts, and estimate the standard deviation of the process.Post your question