Steering revisited You could have checked the data in Exercise 43 for evidence of racial steering using twoproportion z procedures. a) Find the z-value for this approach, and show that when you square your z-value, you get the value of x2 you calculated in Exercise 37. b) Show that the resulting P-values are the same.

STAT 110 – Notes for Week of 9/6/16 Chapter 6 Continued o You can only generalize results (apply statistics from a sample to an entire population) if the results are: Statistically significant Useful The sample that produced the results is representative of the population The experiment that produced the results was similar enough to real life o Completely Randomized Experimental Design: a type of experimental design where all of the subjects are randomly allocated among the treatments. This type of design allows more than one treatment (treatment combinations) to be isolated and studied at the same time.