Here are summary statistics for randomly selected weights of newborn girls: n = 36, x= 3180.6 g, s = 700.5 g. Use a confidence level of 95% to complete parts (a) through (d) below. a. Identify the critical value ta/2 used for finding the margin of error. tα/2 = 2.02 (Round to two decimal places as needed.) b. Find the margin of error. E = 235.8 g (Round to one decimal place as needed.) c. Find the confidence interval estimate of μ. 2944.8 g <μ< 3416.4 g (Round to one decimal place as needed.)

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