Audrey Roberts Statistics 32 connexus.com Landing Pages... Father Factor 5 Lesson 4: Estimating a Population Variance Statistics B Unit 1: Estimates and Sample Sizes and that correspond to a 95% confidence level and a sample 3. Find the critical values size of 9. (1 point) 2.733, 15.507 01.344, 21.955 2.180, 17.535 2.700, 19.023 4. What are the critical values x and x that correspond to a 95% confidence level and a sample size of 91? (1 point) 65.647, 118.136 59.196, 128.299 57.143, 106.629 69.196, 113.145 5. 22 random samples were selected from a population that has a normal distribution. The sample has a mean of 99 and a standard deviation of 5. Construct a 95% confidence interval for the population standard deviation. (1 point) 4
