1. Provide an appropriate response. Find Pus, which is the IQ score separating the bottom 15% from the top 85%. Assume the scores are normally distributed with a mean of 100 and a standard deviation of 15. A .82.5 B.83.3 C.84.0 D.84.6 I believe the answer is B, but I need a second opinion. 2. Choose the correct response. What is a sampling distribution? A. A sampling distribution is the distribution of a static based upon consistent re-sampling. B. A sampling distribution is the original distribution of a statistic. C. A sampling distribution is the distribution associated with the occurence of an event D. A sampling distribution is the distribution related to the average. I believe the answer is D, but I need a second opinion. 3.Select the correct response. What are unbiased estimators targeting? A. sample means B. independent samples C. population parameters D. normal distributions I believe the answer is D but I need a second opinion. 4. Provide an appropriate response. Samples of size n = 60 are randomly selected from the population of numbers (O through 9) produced by a random-number generator, and the mean is taken for each sample. What is the distribution of the sample means? A. not enough information provided B. normal (approximately) C.skewed to the right D.skewed to the left I believe the answer is a but I need a second opinion. 5. Provide an appropriate response. Which of the following is considered a biased estimator? A. median B. mean C. proportion D. variance I believe the answer is a but I need a second opinion