Answer:
95% confidence interval: (2.784,3.176)
Step-by-step explanation:
We are given the following information in the question:
Sample size, n = 25
Sample mean = $2.98
Standard error = $0.10
Alpha = 0.05
95% confidence interval:
Putting the values, we get,
Number 16- 216
number 17- 180
number 18- 252
5.40. It would be 5.38 but you round up to 5.40
Answer:
I don't know if this is right but
Tip Total: $ 12
Total (Bill + Tip): $ 92
Sorry if this is wrong
Step-by-step explanation: