4 - The Taxation Department is interested in estimating the mean amount of money spent on outside tax service by income tax filers filing as a single on their individual form. To do this, they have selected a random sample of n = 16 people from this population and surveyed them to determine the sample mean and sample standard deviation. The following information was observed:

--x=$88.60 s=$30.79

Given this information, what is the 95 per cent confidence interval for the mean dollars spent on outside tax assistance by taxpayers who file as single?

Group of answer choices

Approximately $72.19 - $105.01

About $22.97 - $154.23

Approximately $80.90 - $96.30

About $28.25 - $148.95