online homework manager Course Messages Forums Calendar Gradebook Home > MAT-181 Mon/Wed 1:20pm Fall 2021 > Assessment Homework #7 - Confidence Intervals Score: 36/100 5/13 answered Question 11 In a survey, 27 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $45 and sample standard deviation of $11. Construct a confidence interval at a 80% confidence level. Give your answers to one decimal place.