Hello I'm can some one please help me. It's confusing and I'm stuck.

A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He tests span is children selected at random and finds that their mean attention minutes with a standard deviation of minutes. If we assume that attention spans are normally distributed, find a confidence interval for the mean attention span of children playing with this new toy. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.)