Data contains on several variables for a sample of 1436 second-hand Toyota Corolla cars in Holland. In particular, the data in the third column, titled PRICE, shows the quoted price for these cars.

Below is a 95% CI Compute for the population average price of second-hand Toyota Corolla cars in Holland. Show what formula, if any, you used to arrive at this interval.

Mean	10730.82451
Standard Error	95.71193469
Median	9900
Mode	8950
Standard Deviation	3626.964585
Sample Variance	13,154,872.10
Kurtosis	3.73778119
Skewness	1.70388498
Range	28150
Minimum	4350
Maximum	32500

-What is the population of interest in the problem? (Answer in a sentence or two)

-What is the variable of interest in this problem? (Answer in a sentence or two)

-Which is the fundamental result upon which the formula for the calculation of the CI in (a) above depends?