Question 7 1 pts This is a continuation of the previous question. In a sample of 8 children, the mean age at which they began to combine words was 16.41 months, with a standard deviation of 5.11 months. It has already been determined that it is reasonable to assume that the population has a normal distribution. Calculate the margin of error E for the 95% confidence interval to estimate the mean age at which children first begin to combine words. Round to 4 decimal places