Instrumun Delivery Environment ' & Assessment System Home > BSTA200 DZA > Assessment Quuz 9 - Confidence Intervals Progress saved a; lad. Score: 2/30 2/12 answered - You measure 50 backpacks' weights, and find they have a mean weight of 68 ounces. Assume the population standard deviation is 4.2 ounces. Based on this, construct a 95% confidence interval for the true population mean backpack weight. a 0/2 pts 0 3 (D Details Give your answers as i :l: ME, to two decimal places C] . Domes Check Answer Screenshot