2. An acclaimed restaurant; Fleur De Lys is interested in knowing if their diners spend more on weekends than weekdasto determine this, random samples of 35 weekend diners and 36 weekday diners were selected, and their dining expense per person {excluding tax and tip} were recorded. The results are summarized as follows: --- 539.20 (a). [4 points] Construct a 95% confidence interval for average amount spent for by weekend diners