Sixty Percent of the Respondents in a Random Sample Drawn

Multiple Choice

Sixty percent of the respondents in a random sample drawn from a neighborhood are Democrats.The community as a whole is 75% Democrat.The difference between sample and population has been tested and the null hypothesis has been rejected.What may we conclude?

A) a Type I error has been committed
B) a one-tailed test has been used
C) the neighborhood is significantly less likely to be Democrat
D) the difference is not significant