An appropriate null hypothesis is: a. p2011 p2010 b. p2011 p2010 c. 2011 2010

An appropriate null hypothesis is:

a. p2011 ≤ p2010

b. p2011 ≥ p2010

c. μ2011 ≤ μ2010

d. p2011 > p2010 Neuroinvasive West Nile virus is a severe disease that affects a person’s nervous system . It is spread by the Culex species of mosquito. In the United States in 2010 there were 629 reported cases of neuroinvasive West Nile virus out of a total of 1,021 reported cases and there were 486 neuroinvasive reported cases out of a total of 712 cases reported in 2011. Is the 2011 proportion of neuroinvasive West Nile virus cases more than the 2010 proportion of neuroinvasive West Nile virus cases? Using a 1% level of significance, conduct an appropriate hypothesis test.
• “2011” subscript: 2011 group.
• “2010” subscript: 2010 group