Question 8.24: If a sample size of 16 yields an average of 12 with a standard deviation of 3, estimate the 95% confidence interval for the population (assume a normal distribution). Originally, this was also question 9.22 from the Green Belt 2014 Primer, and is question 9.28 from the Green Belt 2022 Primer. I just completed a CSSGB exam prep course that is very affordable, where I go through many of these exam questions and explain them in detail. Learn more at https://www.leansixsigmaecosystem.com... If you'd like to take an online Green Belt or Black Belt certification prep course similar to this video with others in your company, learn more at https://www.biz-pi.com/product/certif...