1. Are police more likely to initiate stops for black drivers that they are for white drivers? According to the Bureau of Justice Statics, PolicePublic Contact Survey (2015) police stopped 8.61% of white drivers. They surveyed a random sample of 1000 black drivers and found that 9.76% of them were stopped.
2. Using a = 0.05, does the evidence support the proposition that police are more likely to initiate stops for black drivers?

• State the appropriate null and alternative hypotheses.
• What critical value of z will you use?
• Calculate the z statistic from the data.
• What is the p-value?
• Using the p-value you found, what conclusion would you draw?
• State, in your own words, what the p-value means in this context.