Submit test point(s) possible Here are summary statistics for randomly selected weights of newborn girls: n = 36, x = 3197 2 g, s=692 6 g. Use a confidence level of 90% to complete parts (a) through (d) below a. Identify the critical value to / 2 used for finding the margin of error ook a/2= (Round to two decimal places as needed ) lew b. Find the margin of error SA E=9 source (Round to one decimal place as needed ) 12 c. Find the confidence interval estimate of u. (Round to one decimal place as needed ) 19 d. Write a brief statement that interprets the confidence interval. Choose the correct answer below O A. There is a 90% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound O B. Approximately 90% of sample mean weights of newborn girls will fall between the lower bound and the upper bound O C. One has 90% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls O D. One has 90% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls Tutoring Help Next