You measure 31 backpacks' weights, and find they have a mean weight of 34 ounces. Assume the population standard deviation is ?.1 ounces. Based on this, construct a 90% confidence interval for the true population mean backpack weight. Give your answers as decimals, to two places I i :l: i ounces Submit Question You measure 35 watermelons' weights, and find they have a mean weight of 42 ounces. Assume the population standard deviation is 3.6 ounces. Based on this, what is the maximal margin of error associated with a 95% confidence interval for the true population mean watermelon weight. Give your answer as a decimal, to two places i: ounces