According to a recentcensus, 16% of the people in the United States are of Hispanic origin. One county supervisor believes her county has a different proportion of Hispanic people than the nation as a whole. She looks at their most recent surveydata, which was a random sample of 422 countyresidents, and found that 42 of those surveyed are of Hispanic origin.

Check the appropriate conditions for a hypothesis test. Select the correct choice below and fill in the answer boxes within your choice. (Round to one decimal place as needed.) O A. The 422 residents were a random sample from the county of interest. The standard deviation of p is less than 0.5. One expects npo = successes and nqo = failures, which are both more than 20. O B. The 422 residents were a random sample from the county of interest. 422 is likely less than 10% of the population of a county. One expects npo = successes and nqo = failures, which are both more than 10. O C. The 422 residents were a random sample from the county of interest. The sample size is more than 100. One expects npo = successes and nqo = failures, which are both more than 10