A. IS B. is approximately normal 4. The term 1-a refers to: (3pts) A. the probability that a confidence interval does not contain the population parameter. B. the confidence level. C. the level of unbiasedness. D. the level of consistency. 5. Which of the following is an incorrect statement about a 90% confidence interval? (3pts) A. If we repeatedly draw samples of the same size from the same population, 90% of th resulting confidence intervals will include μ. B. There is a 90% probability that the population mean μ will lie between the lower confidence limit and the upper confidence limit. 6. A Type I error occurs when we: (3pts) A. reject a false null hypothesis. B. reject a true null hypothesis. C. don't reject a false null hypothesis. D. don't reject a true null hypothesis.