In testing a proportion, which of the following statements is incorrect? Group of answer choices When the sample proportion is p = .02 and n = 150, it is safe to assume normality. Using α = .05 rather than α = .01 would make it more likely that H0 will be rejected. The sample proportion may be assumed approximately normal if the sample is large enough An 80 percent confidence interval is narrower than the 90 percent confidence interval, ceteris paribus