Finn, a tourism expert, is researching the price of burgers on Highway 1. He randomly selected 18 places that sell burgers and checked the price. The average price of the burgers was 1,425 pesos and...

Finn, a tourism expert, is researching the price of burgers on Highway 1. He randomly selected 18 places that sell burgers and checked the price. The average price of the burgers was 1,425 pesos and the standard deviation was 73 pesos. It can be assumed that the price of burgers follows a normal distribution.

Questions 1 and 2 deal with Finn and his experiment.

1. What is the upper limit of 95% safety margin for the average price of burgers on Highway 1?

1. 1458.72.


2. 1391.28.


3. 1288.70.


4. 1461.3.

1. What is the lower limit of the 95% confidence interval for the price distribution of burgers on Highway 1?

1. 1328.4.


2. 1265.3.


3. 11976.6.


4. 3000.6.