STA 2023

STA 2023 statistics quiz with answers 2020 Week 4 Quiz #1 (7.2.RA-1): Fill in the blank. A critical value, z_α, denotes the __________. A critical value, z_α, denotes the z-score with an area of ɑ to its right. #2 (7.2.17): A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 300 babies were born, and 255 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the r...