QUESTION 4 7 points Save Answer Q4. (5+ 2 = 7 points) a. The weight of golden retrievers is normally distributed, with a population standard deviation of 15 pounds. A random sample of 25 gold retrievers shows that the mean weight is 71 pounds. Determine the confidence interval estimate for the population mean weight of golden retrievers at a 90% confidence level, noting the size of the accuracy. b. A local animal shelter wants to estimate the mean weight of dogs that are up for adoption, with 90% confidence and a maximum error of 5 pounds. The population standard deviation in the weight of dogs is known to be 20 pounds. How many dogs should they sample? Attach File Browse Local Files Trainee QUESTION S