In Testing a Proportion,which of the Following Statements Is Incorrect

Multiple Choice

In testing a proportion,which of the following statements is incorrect?

A) Using α = 0.05 rather than α = .01 would make it more likely that H0 will be rejected.
B) When the sample proportion is p = .02 and n = 150,it is safe to assume normality.
C) An 80 percent confidence interval is narrower than the 90 percent confidence interval,ceteris paribus.
D) The sample proportion may be assumed approximately normal if the sample is large enough.