in a survey 23 people were asked how much they spend on their childs last birthday gift the results were roughly bell shaped with a mean of $40 and standard deviation of $8 construct a confidence...

in a survey 23 people were asked how much they spend on their childs last birthday gift the results were roughly bell shaped with a mean of $40 and standard deviation of $8 construct a confidence interval at a 95% confidence level

_________+-________

give your answers to one decimal place